Add Dog Ears for ST3 - includes persistance (reloading bookmarks from disk)

Compared to the original packaged extension the following features were implemented:

- Delete a bookmark (Ctrl + Shift + D)
- The bookmarks are stored on the hard drive and reloaded
- Handles picking the correct buffer after a restart
- Handles reopening a file if it's no longer open/not open after a restart
Add Ada programming language support
Add Oracle PL/SQL programming language support
Add Postgres PL/pgSQL programming language support
Removing / from Oracle PL/SQL package name
Add Dog Ears ST3 version as a new entry for Dog Ears
Removing / from Postgres PL/pgSQL package name
Merge pull request #1874 from mulander/master

Add Dog Ears for ST3 - includes persistance (reloading bookmarks from di...