Added FAKE 3.2.1 NuGet Package in Src/packages.
Introduced a 'Fake - F# Make' build script. Currently, the only thing it does is to clean build-output paths.
Added a target in build script, in order to build the solution file.
Installed xunit.runners 1.9.2 NuGet package.
Added a target in build script, in order to run the unit tests.
Cleaned the build scripts.
- Used the version of Fake in scripts.
- Merged an import declaration next to its usage.
- Renamed a part of a name to lower case for consistency reasons.
Omitted a redundant parenthesis.