T1000-E Peripherals (#5141)

* T1000-E Peripherals
- enable intelligent charge controller signals
- enable Accelerometer
- enable internal I2C bus
- provide Power to Accelerometer

* POC Accelerometer Code (wakeScreen is moot for that device, just test if the driver works)
* fix building without the sensor

src/mqtt/MQTT.cpp

@@ -717,7 +717,7 @@ bool MQTT::isPrivateIpAddress(const char address[])
     // Even if it's not a valid IP address, we will know it's not a domain.
     bool hasColon = false;
     int numDots = 0;
-    for (int i = 0; i < length; i++) {
+    for (size_t i = 0; i < length; i++) {
         if (!isdigit(address[i]) && address[i] != '.' && address[i] != ':') {
             return false;
         }