Implemented new driver projects (#210)

Moved drivers from the `Boards` projects to `Drivers` folder:
- BQ24295
- AW9523
- AXP2101

The I2C drivers are theoretically cross-platform, but for now they are only built for ESP32.

Drivers/AW9523/Source/Aw9523.cpp

@@ -0,0 +1,24 @@
+#include "Aw9523.h"
+
+#define AW9523_REGISTER_P0 0x02
+#define AW9523_REGISTER_P1 0x03
+
+bool Aw9523::readP0(uint8_t& output) const {
+    return readRegister8(AW9523_REGISTER_P0, output);
+}
+
+bool Aw9523::readP1(uint8_t& output) const {
+    return readRegister8(AW9523_REGISTER_P1, output);
+}
+
+bool Aw9523::writeP0(uint8_t value) const {
+    return writeRegister8(AW9523_REGISTER_P0, value);
+}
+
+bool Aw9523::writeP1(uint8_t value) const {
+    return writeRegister8(AW9523_REGISTER_P1, value);
+}
+
+bool Aw9523::bitOnP1(uint8_t bitmask) const {
+    return bitOn(AW9523_REGISTER_P1, bitmask);
+}