RASP UI / plugin to Reaper

[Zesseth]

Create the dockable RASP window as a Reaper ReaScript plugin. The UI should integrate natively into Reaper's interface and be loadable via Actions menu.

[Zesseth]

Being handled in branch V0.1_features.

[Zesseth]

Implemented in commit 9868b14 on branch V0.1_features. Will be closed when the branch is merged to master.