Data layer introduction (#254)

* Active power, SOH

* Total and remaining capacity

* pre-commit, baby!

* Typo

* pre-commit wrestling

* Temp min/max

* Voltage and current

* Min/max design voltage

* BMS status, max charge/discharge, cell min/max

* BMS status cleanup

* Pre-commit, we meet again

* Cell voltages and minor fixes

* Cell number

* SOC

* Missed a spot

* Event handling moved, Wh bugs fixed, time measurements improved

* Pre-commit, old friend...

* Battery chemistry

* Update TESLA-MODEL-3-BATTERY.cpp

* Total capacity/Wh max, soem default values

* Good ol' pre-comm

* Some prio/core cleanup, docs...

* Contactor closing variables

* Max charge/discharge amps

* Data layer variable documentation

* USER_SETTINGS comments

* Charger comment

* Update datalayer.h

Software/src/system_settings.h

@@ -9,9 +9,13 @@
  * Parameter: TASK_CONNECTIVITY_PRIO
  * Description:
  * Defines the priority of various wireless functionality (TCP, MQTT, etc)
+ * 
+ * Parameter: TASK_MODBUS_PRIO
+ * Description:
+ * Defines the priority of MODBUS handling
 */
 #define TASK_CORE_PRIO 4
-#define TASK_WIFI_PRIO 3
+#define TASK_CONNECTIVITY_PRIO 3
 #define TASK_MODBUS_PRIO 8
 
 /** MAX AMOUNT OF CELLS
@@ -35,6 +39,11 @@
  * Description:
  * The period of whatever LED mode is active. If CLASSIC, then a ramp up and ramp down will finish in
  * LED_PERIOD_MS milliseconds
+ * 
+ * Parameter: LED_EXECUTION_FREQUENCY
+ * Description:
+ * Defines how often the LED handling will run, basically the FPS. The animation will honor its overall
+ * frequency but the animation will be choppier
 */
 #define LED_MODE_DEFAULT FLOW
 #define LED_PERIOD_MS 3000