Implement UART HAL (#212)

- Implement UART HAL
- Improved I2C and SPI HAL mocking mechanism (removed mock files)

TactilityHeadless/Include/Tactility/hal/i2c/I2cCompat.h

@@ -1,39 +1,38 @@
 #pragma once
 
 #ifdef ESP_PLATFORM
+
 #include <hal/i2c_types.h>
 #include <driver/i2c.h>
+
 #else
 
 #include <cstdint>
 
-typedef int esp_err_t;
-
-typedef enum {
+enum i2c_port_t {
     I2C_NUM_0 = 0,
     I2C_NUM_1,
     LP_I2C_NUM_0,
     I2C_NUM_MAX,
-} i2c_port_t;
+};
 
-typedef enum{
+enum i2c_mode_t {
     I2C_MODE_MASTER,
     I2C_MODE_MAX,
-} i2c_mode_t;
+};
 
-typedef struct {
+struct i2c_config_t {
     i2c_mode_t mode;
     int sda_io_num;
     int scl_io_num;
     bool sda_pullup_en;
     bool scl_pullup_en;
-
     union {
         struct {
             uint32_t clk_speed;
         } master;
     };
     uint32_t clk_flags;
-} i2c_config_t;
+};
 
 #endif