UV Editing: Add option to reset position of cursor to default [0,0] position
Adds support for "ORIGIN" target in uv.snap_cursor
Adds "Cursor to Origin" option in Shift+S pie menu and uv->snap top menu
In 3D view there is option to quickly bring back cursor to world origin with Shift+S -> 1 key sequence:
The same pie menu with some similar options is available in uv editor but option to revert cursor position to [0,0] is missing.
Patch is adding support for this option and putting it also in pie menu and in top menu: uv->snap->cursor to origin
One thing I'm not sure of is how pie menu ordering works. I wanted this option to be under "1" number similar to 3D view, but I didn't saw any controls for it in the code. I noticed that it shows under different numbers depending on order of pie menu elements in the code so I "brute force" it to check in which position it will be under "1" number. Not sure if this is error prone though.


