[android] add power consumption and battery status overlay (#22)

- adds the option to show power draw in amperes
- shows if the battery is charging

Signed-off-by: Aleksandr Popovich <alekpopo@pm.me>

Co-authored-by: Aleksandr Popovich <alekpopo@pm.me>
Reviewed-on: https://git.bixed.xyz/Bix/eden/pulls/22

src/common/settings_enums.h

@@ -178,6 +178,8 @@ ENUM(SpirvOptimizeMode, Never, OnLoad, Always);
 
 ENUM(GpuOverclock, Low, Medium, High)
 
+ENUM(TemperatureUnits, Celsius, Fahrenheit)
+
 template <typename Type>
 inline std::string CanonicalizeEnum(Type id) {
     const auto group = EnumMetadata<Type>::Canonicalizations();