Initial commit of Microsoft .NET Framework reference source files

This commit adds the 4 files we need from the Microsoft .NET Framework reference source along with the license (MIT) and metadata. The source files have not been modified.

Change-Id: Ideeb869cd9ea62f10aab3785eb212544d17de9ae
7 files changed
tree: c3fd52d7f777a21124370419512cfedb0d08ca94
  1. System/
  2. LICENSE
  3. METADATA
  4. OWNERS