Suggested Pitch Bend workaround, for extended plugins

Suggested Pitch Bend workaround for extended plugins:

## Enhancement Summary
Extension to save notes/sounds in formats that have Pitch Bend.
With user friendly interface, for it.

### Justification
It is annoying to make "New Project", every time, I want to "Pitch Bend" a note/sound.
Expectantly in middle of the work.
Super-super annoying for sf2/gig and vst guitars.

But I still love this project 😃

#### Mockup

1. Just like “Controller Rack” create “Sound Pad”.
2. In “Piano-Roll” window, add option under Right Mouse Click “Add to Sound Pad”, if clicked on crated note.
3. Make a default directory, under “documents/Imms” named “sound_pad”
4. Files added to “Sound Pad”, should be a single sound files saved as .wav, (or compressed if chosen in settings) in directory from point 3.
5. Dragging files from “Sound Pad” should work exactly as dragging similar file types from “My Samples” section. ⋆

Also:
If possible, Default Naming Pattern for notes “[short_for_plugin]-[object_name]-[instrument_number]-[note]-[length]-[Next_Number]”
short_for_plugin = sf2, gig, vst, etc.
object_name = name of used “sf2, gig, vst, etc.”
instrument_number = number get from used “sf2, gig, etc.”
note = C1, …
Length = 1, …
Next_Number = just in case if similar name already exists

#####
⋆ = Running files from "AudioFileProcessor" plugin, that supports "Pitch Bend".
⋆⋆ "LMMS Pad" should be a better name then "Sound Pad”, as it could be confusing for some.
Base idea is the same.

Start by reading the existing Controller Rack, Piano-Roll, My Samples, and AudioFileProcessor components to determine where a Sound Pad could fit. Trace how dragged sample files are handled and how projects currently preserve pitch-bent notes. Done means users can add a pitch-bent note, save it with the proposed naming and storage behavior, and drag it back like a sample.