Various fixes and improvements (#182)

- Fix for `logMutex` bug where the `Mutex` constructor is not called when doing early boot logging (with `DEBUG` level logging) . The only way to make it work is to explicitly call the constructor in the logging wrapper function.
- Fix for unPhone power states

Boards/UnPhone/Source/bq24295/Bq24295.h

@@ -6,13 +6,25 @@
 
 class Bq24295 : I2cDevice {
 
+private:
+
+    bool readChargeTermination(uint8_t& out) const;
+
 public:
 
+    enum class WatchDogTimer {
+        Disabled = 0b000000,
+        Enabled40s = 0b010000,
+        Enabled80s = 0b100000,
+        Enabled160s = 0b110000
+    };
+
     explicit Bq24295(i2c_port_t port) : I2cDevice(port, BQ24295_ADDRESS) {}
 
-    bool getWatchDog(uint8_t value) const;
-    bool setWatchDogBitOn(uint8_t mask) const;
-    bool setWatchDogBitOff(uint8_t mask) const;
+    bool getWatchDogTimer(WatchDogTimer& out) const;
+    bool setWatchDogTimer(WatchDogTimer in) const;
+
+    bool isUsbPowerConnected() const;
 
     bool getOperationControl(uint8_t value) const;
     bool setOperationControlBitOn(uint8_t mask) const;