Context menu support for audio plugins (VST, AU etc.) #65

Hi there, It's quite common for open source audio plugins to be blocked by Gatekeeper. Though they cannot be launched directly, they are treated as executables and subject to the same restrictions as apps, but do not receive the context menu action for Sentinel Unquarantine.

One other minor issue, is that in the case where the 'automatically launch it' setting is turned on, it triggers the system dialog "There is no application set to open the document " error when dragging audio plugin files onto the app's drop zone.

It would be super handy if these could be supported via the context menu in the same way as apps, or perhaps an alternative, would be to setup a user-definable list in the settings for file types which should use it.

Thanks for making the tool!