[rmkit] misc upgrades & asks

[raisjn]

• speed up draw_rect ([rmkit][fb] speed up draw_rect functions #78)
• persisted touch slots ([rmkit][input] copy old mt slots from previous event #77) (in progress)
• scene stack ([request] Scene stack #104)
• dialog as scene ([rmkit][ui] Widget ownership model #72)
• palm detection and touch prevention ([rmkit] Slots not persisted between TouchEvents #74)
• remove multi-touch events from event handling pipeline ([rmkit] Slots not persisted between TouchEvents #74)
• drag manager (Add long click and dragging support remarkable_puzzles#7)
• screenshots in CI
• virtual destructor for widget (Widget needs a virtual destructor #112)
• megatask of app ideas ([requests] useraskmegatask #88)
• set dithering / waveform mode using object that resets when it is destroyed
• simple improvements ([simple] relative placement  #110, [simple] add drawing primitives #16, [simple] inverted simple #21)

[raisjn]

@mrichards42 - is there any of these in particular you'd like me to work on next?

[mrichards42]

If have you have a straightforward way to tackle scene stack before I get to it that would be awesome. Eventually (probably after initial release) I'm going to want to have a dialog with a dropdown since puzzles allow you to set custom size/difficulty/etc.

[raisjn]

i haven't forgotten about this - i will start trying it out on friday: goal will be to have the dropdown in dialog inside input_demo