* Support for CMake builds. Added Linux stub port for now to allow cross
compilation.
* Fixing A_CUSTOM_PORT usage to make it easier to integrate with external code.
* Fixing include directories for port.
* Adding in initial Github actions/workflows based on FreeRTOS-Plus-IP and added documentation on how to integrate with cmake.
* Fixing formatting with uncrustify.
* Commenting out ci workflows that are not currently supported.
* Fixing comments referencing TCP to FAT.