Better battery widget

Battery widget for Vivoactive series. * Battery level gauge * Remaining time estimation * Discharge graph * Measure discharge speed for user-defined interval * Animations ### Roadmap * Better fonts alignment to allow proper localization * Colors customization (most wanted feature from reviews) ### FAQ 0. **I can't open some widget pages** Watch a video first, and if any questions left, please, contact developer. 1. **I have a question or a problem** Feel free to "Contact developer" or open an issue at "source code". 2. **How to uninstall** * Uninstall widget from Garmin Connect mobile app 3. **What about adding more functions** Your ideas about battery monitoring are highly welcome. You may write it here or [create an issue](https://github.com/tumb1er/BetterBatteryWidget/issues/new). Also, PR requests are [welcome](https://github.com/tumb1er/BetterBatteryWidget/pull/new/master).

1.0.0 Backward-incompatible changes * stored data format changed; data migration is implemented, but if something goes wrong, please uninstall widget and install it again * Drop D2 Charlie support because of ByteArray absence (required for new store format) New devices * D2Air * Descent MK2/MK2i/MK2s * Enduro * Fenix 7/7s/7x * Forerunner 745 * Forerunner 945lte * Marq Golfer Features and Fixes: * Glance View * Use EMA for 30-minute prediction * Fix Area mode graph color 0.10.0 - fix key handling (thanks to Sam lawrence), Venu family support 0.9.0 - new sdk, fix key handling on main page, address some unhandled errors 0.8.0 - add area graph mode and extend graph interval 0.7.0 - fix issues with background data processing 0.6.0 - fix some issues with discharge graph 0.5.0 - non-touch devices support 0.4.0 - fix graph page crash after charged 0.3.1 - fix empty graph 0.2.0 - support touch devices with 260x260 screen 0.1.0 - initial public release