fix project to conform with new platformio standards

Fixes arduino builds on top of mbed

Cleaned up all cpp check errors, no functional changes

This release is a major refactor of the library which adds the following major features

• Support for mbed via Serial
• Support for ANT soft devices (currently only Arduino)
• Massive internal refactor

This refactor added the ability to expand support platforms (ESP-IDF and Zephyr work already started) and additional protocols (SPI work already started) while maintaining support for antplus-arduino. This is a breaking change so you will need to upgrade antplus-arduino as well.

Extended data on data messages is now enabled
Encryption configuration messages added
adding CW Test implementation.

Add support for testing

This will allow for testing to being in ANT+ arduino as well.

Fix for unidirectional channel configuration

Changes:

• More messages implemented
• Callback system complete
• Few semantic changes

ToDos:

• Native API
• Burst Handling
• Extended Fields
• Some messages (mostly related to encryption) not yet implemented

• Callbacks (usable but not complete) and Native (not usable) support started
• More messages added
• Refactored buffer handling for TX data messages
• Added more examples, some incomplete

Added Broadcast Tx support
Added Ant Version Example
Added Tx Counter Example