Initial support for android

android/app/src/main/res/drawable-land-xxxhdpi/splash.png

android/app/src/main/res/drawable-port-hdpi/splash.png

android/app/src/main/res/drawable-port-mdpi/splash.png

android/app/src/main/res/drawable-port-xhdpi/splash.png

android/app/src/main/res/drawable-port-xxhdpi/splash.png

android/app/src/main/res/drawable-port-xxxhdpi/splash.png

.../app/src/main/res/drawable-v24/ic_launcher_foreground.xml

android/app/src/main/res/drawable/ic_launcher_background.xml

android/app/src/main/res/drawable/splash.png

android/app/src/main/res/layout/activity_main.xml

android/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml

.../app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml

android/app/src/main/res/mipmap-hdpi/ic_launcher.png

...d/app/src/main/res/mipmap-hdpi/ic_launcher_foreground.png

android/app/src/main/res/mipmap-hdpi/ic_launcher_round.png

android/app/src/main/res/mipmap-mdpi/ic_launcher.png

...d/app/src/main/res/mipmap-mdpi/ic_launcher_foreground.png

android/app/src/main/res/mipmap-mdpi/ic_launcher_round.png

android/app/src/main/res/mipmap-xhdpi/ic_launcher.png

.../app/src/main/res/mipmap-xhdpi/ic_launcher_foreground.png