Add workaround for timezones on windows (#151)

Add workaround for timezones on windows

Co-authored-by: kolaente <k@knt.li>
Reviewed-on: https://kolaente.dev/vikunja/api/pulls/151

vendor/4d63.com/tz/.gitignore

@@ -0,0 +1 @@
+zoneinfo/

vendor/4d63.com/tz/.travis.yml

@@ -0,0 +1,12 @@
+language: go
+
+go:
+  - "1.x"
+
+go_import_path: 4d63.com/tz
+
+script:
+  - go test -coverprofile=coverage.txt
+
+after_success:
+  - bash <(curl -s https://codecov.io/bash)

vendor/4d63.com/tz/LICENSE

@@ -0,0 +1,53 @@
+MIT License
+
+Copyright (c) 2018 Leigh McCulloch
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+--------------------------------------------------------------------------------
+
+zoneinfo.go generated from /lib/time/zoneinfo.zip from Go.
+
+Copyright (c) 2009 The Go Authors. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+   * Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+   * Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the following disclaimer
+in the documentation and/or other materials provided with the
+distribution.
+   * Neither the name of Google Inc. nor the names of its
+contributors may be used to endorse or promote products derived from
+this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

vendor/4d63.com/tz/README.md

@@ -0,0 +1,19 @@
+# tz
+[![Build Status](https://img.shields.io/travis/leighmcculloch/go-tz.svg)](https://travis-ci.org/leighmcculloch/go-tz)
+[![Codecov](https://img.shields.io/codecov/c/github/leighmcculloch/go-tz.svg)](https://codecov.io/gh/leighmcculloch/go-tz)
+[![Go Report Card](https://goreportcard.com/badge/github.com/leighmcculloch/go-tz)](https://goreportcard.com/report/github.com/leighmcculloch/go-tz)
+[![Go docs](https://img.shields.io/badge/godoc-reference-blue.svg)](https://godoc.org/4d63.com/tz)
+
+Predictably load `time.Location`s regardless of operating system.
+
+```
+import "4d63.com/tz"
+```
+
+```
+loc, err := tz.LoadLocation("Australia/Sydney")
+```
+
+Docs and examples at https://godoc.org/4d63.com/tz.
+
+This package exists because of https://github.com/golang/go/issues/21881.

vendor/4d63.com/tz/go.mod

@@ -0,0 +1,5 @@
+module 4d63.com/tz
+
+go 1.13
+
+require 4d63.com/embedfiles v0.0.0-20190311033909-995e0740726f

vendor/4d63.com/tz/go.sum

@@ -0,0 +1,2 @@
+4d63.com/embedfiles v0.0.0-20190311033909-995e0740726f h1:oyYjGRBNq1TxAIG8aHqtxlvqUfzdZf+MbcRb/oweNfY=
+4d63.com/embedfiles v0.0.0-20190311033909-995e0740726f/go.mod h1:HxEsUxoVZyRxsZML/S6e2xAuieFMlGO0756ncWx1aXE=

vendor/4d63.com/tz/tools.go

@@ -0,0 +1,5 @@
+// +build tools
+
+package tz
+
+import _ "4d63.com/embedfiles"

vendor/4d63.com/tz/tz.go

@@ -0,0 +1,38 @@
+// Package tz contains time zone info so that you can predictably load
+// Locations regardless of the locations available on the locally running
+// operating system.
+//
+// The stdlib time.LoadLocation function loads timezone data from the operating
+// system or from zoneinfo.zip in a local Go installation. Both of these are
+// often missing from some operating systems, especially Windows.
+//
+// This package has the zoneinfo.zip from Go embedded into the package so that
+// queries to load a location always return the same data regardless of
+// operating system.
+//
+// This package exists because of https://github.com/golang/go/issues/21881.
+package tz // import "4d63.com/tz"
+
+import (
+	"errors"
+	"time"
+)
+
+//go:generate rm -fr zoneinfo
+//go:generate unzip -q $GOROOT/lib/time/zoneinfo.zip -d zoneinfo/
+//go:generate go run 4d63.com/embedfiles -out=zoneinfo.go -pkg=tz zoneinfo/
+
+func tzData(name string) ([]byte, bool) {
+	data, ok := files["zoneinfo/"+name]
+	return data, ok
+}
+
+func LoadLocation(name string) (*time.Location, error) {
+	if name == "" || name == "UTC" || name == "Local" {
+		return time.LoadLocation(name)
+	}
+	if tzdata, ok := tzData(name); ok {
+		return time.LoadLocationFromTZData(name, tzdata)
+	}
+	return nil, errors.New("unknown location " + name)
+}