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/PlatformPosix/CMakeLists.txt

@@ -0,0 +1,20 @@
+cmake_minimum_required(VERSION 3.20)
+
+file(GLOB_RECURSE SOURCES "Source/*.c**")
+
+if (DEFINED ENV{ESP_IDF_VERSION})
+
+    idf_component_register(
+        SRCS ${SOURCES}
+#        INCLUDE_DIRS "Include/"
+        REQUIRES TactilityKernel driver
+    )
+
+else ()
+
+    add_library(PlatformPosix OBJECT)
+    target_sources(PlatformPosix PRIVATE ${SOURCES})
+#    target_include_directories(PlatformPosix PUBLIC Include/)
+    target_link_libraries(PlatformPosix PUBLIC TactilityKernel)
+
+endif ()

Platforms/PlatformPosix/Source/Register.cpp

@@ -0,0 +1,9 @@
+#include <Tactility/Driver.h>
+
+extern "C" {
+
+extern void register_platform_drivers() {
+    /* Placeholder */
+}
+
+}

Platforms/PlatformPosix/devicetree.yaml

@@ -0,0 +1,2 @@
+dependencies:
+  - TactilityKernel