Code Quality: Improved the way packages are managed in the codebase (#1885)

* Improved the way packages are managed in the codebase

* Delete `NuGet.config`

* Remove `packages/` from ignore

Author: Lamparter

.gitignore

@@ -13,9 +13,6 @@ bin/
 Package/Release/
 *.binlog
 
-# NuGet Packages
-packages/
-
 # Python cache files
 __pycache__/