Implemented TactilityKernel and DevicetreeCompiler, updated licenses & copyrights (#452)

**New features**

- Created a devicetree DTS and YAML parser in Python
- Created new modules:
  - TactilityKernel (LGPL v3.0 license)
  - Platforms/PlatformEsp32 (LGPL v3.0 license) 
  - Platforms/PlatformPosix (LGPL v3.0 license)
  - Tests/TactilityKernelTests

Most boards have a placeholder DTS file, while T-Lora Pager has a few devices attached.

**Licenses**

Clarified licenses and copyrights better.

- Add explanation about the intent behind them.
- Added explanation about licenses for past and future subprojects
- Added more details explanations with regards to the logo usage
- Copied licenses to subprojects to make it more explicit

Platforms/PlatformEsp32/Include/Tactility/bindings/esp32_gpio.h

@@ -0,0 +1,14 @@
+#pragma once
+
+#include <Tactility/bindings/bindings.h>
+#include <Tactility/drivers/Esp32Gpio.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+DEFINE_DEVICETREE(esp32_gpio, struct Esp32GpioConfig)
+
+#ifdef __cplusplus
+}
+#endif

Platforms/PlatformEsp32/Include/Tactility/bindings/esp32_i2c.h

@@ -0,0 +1,14 @@
+#pragma once
+
+#include <Tactility/bindings/bindings.h>
+#include <Tactility/drivers/Esp32I2c.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+DEFINE_DEVICETREE(esp32_i2c, struct Esp32I2cConfig)
+
+#ifdef __cplusplus
+}
+#endif

Platforms/PlatformEsp32/Include/Tactility/drivers/Esp32Gpio.h

@@ -0,0 +1,15 @@
+#pragma once
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdint.h>
+
+struct Esp32GpioConfig {
+    uint8_t gpio_count;
+};
+
+#ifdef __cplusplus
+}
+#endif

Platforms/PlatformEsp32/Include/Tactility/drivers/Esp32I2c.h

@@ -0,0 +1,19 @@
+#pragma once
+
+#include <Tactility/drivers/Gpio.h>
+#include <hal/i2c_types.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct Esp32I2cConfig {
+    uint32_t clock_frequency;
+    struct GpioPinConfig pin_sda;
+    struct GpioPinConfig pin_scl;
+    const i2c_port_t port;
+};
+
+#ifdef __cplusplus
+}
+#endif