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

TactilityKernel/Source/drivers/Root.cpp

@@ -0,0 +1,16 @@
+#include <Tactility/drivers/Root.h>
+#include <Tactility/Driver.h>
+
+extern "C" {
+
+Driver root_driver = {
+    .name = "root",
+    .compatible = (const char*[]) { "root", nullptr },
+    .start_device = nullptr,
+    .stop_device = nullptr,
+    .api = nullptr,
+    .device_type = nullptr,
+    .internal = { 0 }
+};
+
+}