Revert "Removed accidental eclipse dependency"

This reverts commit 301bc444f770837f6853d2b2e2ac78d1b40b6418.
Revert "Added note to manifest explaining what plugin should do."

This reverts commit 846fdb46032f7f62c688330b254d3f98c12a6842.
Revert "ADMIN: Removed bin directory and added gitignore"

This reverts commit ce05528ff39934723799f3124a92b1c1c520be81.
Revert "Moved IObservable to new core plugin with no dependencies."

This reverts commit c20b13d1f7844de6f5a0952bd5ea121b76405f16.
Revert "Moved IMonitor to scisoft and IObservable to new core plugin with no dependencies."

This reverts commit d001f8dcbb53c4109218c09a4c77a59ed7632a69.
Added deprecated to make it obvious that IMonitor is scisoft.