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);
+}

Drivers/AW9523/Source/Aw9523.h

@@ -0,0 +1,23 @@
+#pragma once
+
+#include <Tactility/hal/i2c/I2cDevice.h>
+
+#define AW9523_ADDRESS 0x58
+
+class Aw9523 : public tt::hal::i2c::I2cDevice {
+
+public:
+
+    explicit Aw9523(i2c_port_t port) : I2cDevice(port, AW9523_ADDRESS) {}
+
+    std::string getName() const final { return "AW9523"; }
+    std::string getDescription() const final { return "GPIO expander with LED driver and I2C interface."; }
+
+    bool readP0(uint8_t& output) const;
+    bool readP1(uint8_t& output) const;
+
+    bool writeP0(uint8_t value) const;
+    bool writeP1(uint8_t value) const;
+
+    bool bitOnP1(uint8_t bitmask) const;
+};