Add battery styles and more, (2/2)

Battery styles and "symbols" are inspired from Slimroms:

https://github.com/SlimRoms/packages_apps_Settings/commit/1e216b9a8ac3642e3ea99fed5ae593005813125e
https://github.com/SlimRoms/packages_apps_Settings/commit/e593ff0af1886d8c275e28f1b1e96dd3a9b9e0f4

Battery styles include:

 - custom circle color
 - custom text color
 - custom text color, (charging)
 - custom animation speed, (circle)

Additional battery "symbols":

- Dotted circle with percentage text
- Dotted circle without percentage text
- Percentage text without icon

Bug fixes:

 - Fix circle battery symbols doesn`t disappear if checkbox "Show battery status" is deactivated
 - Add charging animation for symbol "Icon and percentage"