Remove all files that have been separated into a new library 'objectlib'
Lots of changes:
1) new 'info' button (not working yet)2) make all dialogs modal; rework the way the Pattern Dialog appears.
Bigger 'OK' button in Dialogs.
Make it so that the Navigation Bar does not re-appear when we pop up a DialogFragment.
Now there's noly 1 case when it still reappears: it's when we pop up a PopupWindow.
Introduce three sizes of UI images: small, medium, large.
Improve setting text size in Spinners.
Improvements to the UI - make it proportional regardless of the physical screen size. (Part 7 - last 2 Dialogs)
Improvements to the UI - make it proportional regardless of the physical screen size. (Part 5 - first 3 Dialogs)
Finally solve the bug on Samsung Android 9 and 10 phones that the Dialogs Main & patterns wouldn't be modeless: move the setting of this flag earlier, to the 'onCreateDialog()' function.
Minor.
Lots of bugfixes.
Move to AndroidX, target API level 29.
Improve the Effects Dialog so it looks good on 'thin' screens ( 720x1440 )
(Hopefully) make the Dialogs NOT disappear on clicks outside (previously this wasn't working on Android 9).Lower API requirements to 21.
More support for the 3x3x3 Solver: more of the actual 3x3x3 solver mechanism.