LTR UI elements; rename some of them.
Unify the (small,medium,big,huge) UI graphics.
external,helpers: license.
Add info pane: part 1.
Convert the theme to be a MaterialTheme and the TransparentImageButton to be a MaterialButton - the first forced by the second, and the second because a MaterialButton gives us control over the location of the icon in top of it. We need that because of the new 'solve/scramble' split-button in the lower right of the Play screen.
Remove the concept of a 'TwistyActivity' altogether.
Hide most of the TwistyActivity methods inside objectlib.
Move RubikControl to objectlib (as 'ObjectAutomator')Hide ObjectPreRender inside objectlib and move its APi to ObjectControl.
Move ObjectControl, the next big chunk of code, to objectlib.