Updated targetSdkVersion to 33.

• Updated to FlipClock v2.10.0.
  • Added card for second.
  • Updated touch event handling.

Updated to disable HarfBuzz support of SDL2_ttf to reduce app size.
Updated to restore minSdkVersion to 16.

Updated to FlipClock v2.9.2.
Updated SDL2 to v2.0.22.
Updated SDL2_ttf to v2.0.18.

Updated to FlipClock v2.4.0.
Updated gradle version.

Updated to fix USB crash when targetSdkVersion is 29 or higher.

Updated targetSdkVersion to 29 to make Google Play happy.

Updated to drop unused permissions.

First usable version.