Write documentation for new portion of RAM

[RemiFabre]

bool          positionTrackerOn;        // 0xA4
	bool          debugOn;                  // 0xA5
	uint16 staticFriction;                  // 0xA6
float i0;								// 0xA8
float r;								// 0xAC
float ke;                               // 0xB0
float kvis;                             // 0xB4
uint16 statToCoulTrans;                 // 0xB8
float coulombCommandDivider;            // 0xBA
int16 speedCalculationDelay;			// 0xBE
float ouputTorque;                      // 0xC0
float outputTorqueWithoutFriction;      // 0xC4
unsigned char frozenRamOn;              // 0xC8
unsigned char useValuesNow;             // 0xC9
uint16 torqueKp;                        // 0xCA
float goalTorque;						// 0xCC