[Feature Request] Navigate by mouse input

[Stefan Abrahamsen]

I suggest that ImageGlass should be able to handle navigating images/albums purely by mouse input.

ImageGlass already can navigate purely by keyboard, so it should be able to do it purely by mouse as well.

My input suggestions are:

Prev/Next image = Scrollwheel Up/Down (already works)
                                               ^
                      Perhaps a preference to toggle behavior
                                               v
Zoom In/Out       = Scrollwheel Up/Down while Right mouse button down

Alternate Prev/Next image method = Click left/right side of image

Lock Zoom        = Left click while Right mouse button down

Toolbar toggles  = Forward mouse button = Top toolbar; Backward mouse button = Thumbnail panel

Exit Fullscreen  = Middle mouse button

Exit ImageGlass = Right click while Left mouse button down