This enables two of the "unfinished" puzzles. Slide requires a new "sticky
mouse mode" to enable dragging. The help system is disabled for these
puzzles, since they lack manual chapters.
Group is currently unplayable due to lack of request_keys() support, which
will need to be added upstream. Separate fails to draw anything.
Change-Id: I7bcff3679ac5b10b0f39c5eaa19a36b4b1fe8d53
This brings the puzzles source in sync with Simon's branch, commit fd304c5
(from March 2024), with some added Rockbox-specific compatibility changes:
https://www.franklinwei.com/git/puzzles/commit/?h=rockbox-devel&id=516830d9d76bdfe64fe5ccf2a9b59c33f5c7c078
There are quite a lot of backend changes, including a new "Mosaic" puzzle.
In addition, some new frontend changes were necessary:
- New "Preferences" menu to access the user preferences system.
- Enabled spacebar input for several games.
Change-Id: I94c7df674089c92f32d5f07025f6a1059068af1e
