Initial commit of monodevelop

Summary: This solves T2024

Test Plan: Successfully built a Gtk-sharp application with random widgets placed with Designer

Reviewers: Triage Team, DataDrake

Reviewed By: Triage Team, DataDrake

Subscribers: DataDrake, jvdneste, ikey

Maniphest Tasks: T2024

Differential Revision: https://dev.solus-project.com/D1685