support for battery if any + TPMS app to ext (#2129)

* batt initial
* batt widgets
* settings modify
* batt info screen
* ability to hide icon
* battView
* redo tmps
* hide curr + charge if no data
* fix flashing

firmware/common/ads1110.hpp

@@ -27,11 +27,10 @@
 #include <string>
 
 #include "i2c_pp.hpp"
-
+namespace battery {
 namespace ads1110 {
 
 using address_t = uint8_t;
-using reg_t = uint16_t;
 
 class ADS1110 {
    public:
@@ -39,10 +38,11 @@ class ADS1110 {
         : bus(bus), bus_address(bus_address), detected_(false) {}
 
     void init();
+    bool detect();
     bool isDetected() const { return detected_; }
 
-    float readVoltage();
-    void getBatteryInfo(float& batteryPercentage, float& voltage);
+    uint16_t readVoltage();
+    void getBatteryInfo(uint8_t& batteryPercentage, uint16_t& voltage);
 
    private:
     I2C& bus;
@@ -50,9 +50,8 @@ class ADS1110 {
     bool detected_;
 
     bool write(const uint8_t value);
-    bool detect();
 };
 
 } /* namespace ads1110 */
-
+}  // namespace battery
 #endif /* __ADS1110_H__ */