Eto.Forms Update

[harry-cpp]

• name: Eto.Forms
• version: 2.3.0 (develop)
• acquired from: Compiled from source from my repo
  • https://github.com/cra0zy/Eto/tree/monogame
  • https://github.com/cra0zy/Eto/tree/c7fe5a4064feac27a9867ed6390351d78ac19aa2

[tomspilman]

Thanks @cra0zy !