Cleanup for v1.5.0 (#27)

* Update version and fix build using dotnet 5 tools

* Update NodaTime project version

* Ignore docs xml file

* Update  sdk version

* Update test project packages

* Update SourceLink package

* Update NodaTime

* Add version prefix

* Use appveyor Visual Studio 2019 Preview

* Add github action

* Remove Portable targets

* Target netcoreapp2.1

* Add net5.0 and change netcoreapp3.1

* Use GitVersion

* Remove .appveyor script and remove build script. Use dotnet build instead.

* Add gitversion to github action

* Use version 5

* Set fetch depth

* Change fetch-depth to 2

* Update GitVersion master branch to master

* use main

* Removed support for .NET Framework 2.0, 4.0

* Change fetch-depth to 2

* Add master

* Remove master

* Change fetch-depth to 0

* Remove next-version

* Add publish step

* Pack and upload artifacts

* Change settings to get a deterministic build

* Add Release Build

Support .NETFramework and NetStandard (#19)

* Add psake files to build directory

* Working on .net standard and build support

* Use the standard project name

* Support multiple TargetFrameworks for the main zmanim project

net45;net40;net35;net20;netstandard1.0;netstandard1.3;netstandard2.0;portable-net45+win8+wpa81+wp8;portable-net40+win8+wpa81+wp8+sl5

* Remove unused packages and comments

* Remove assembly title

* csproj update

* use using

* Use NodaTime instead of the PublicDomain version of Olson TzDatabase we were working off of before

* Remove the silverlight project

* Remove Zmanim.Java

* Remove Zmanim.Scheduling

* Remove Zmanim.QuartzScheduling

* Remove unused libs

* Remove ZmanimWithSamples

* Remove old acknowledgements

* Add Microsoft.NET.Test.Sdk

* Use Zmanim project id and create alpha release

* Only suport netstandard2 and net45 for now

* Remove old build script

* Clean up the license files and only store one copy of it

* Remove How to build file since it should now be self understood

* Update .gitignore

* Remove the nuget packages from source control

* Build script now works for .net45 and netstandard2

* Build script now generates all the framwork versions

* Remove version from csproj

* Update relese notes

* Add appveyor build script and add build status to readme

* Update appveyor script

* Set DeterministicSourcePaths to false

* Fix version

* Dont use VS preview

* Remove nunit, ilmerge and zip bins

Adding linq tests to test project