Feat external board definition version control

[nitin710]

Description

• Adds provision for Agave RevB
• Adds LED controller
• Improves NVM controller by providing hwVersion for init
• versionController class has a new provision to check for HW (device) definitions in the project files
• Project file (platform ini) has a new section that enables #defines for boards. This way, a board version can be passed as compile time to compile for a specific target

Usage

• To compile from source you will need to install the platformIO build chain. Check out the EmotiBit documentation to setup platformIO.
• Once the platformIO build environment is setup, switch to this branch in EmotiBit_FeatherWing repo and you should be able to compile it from source.
• Make sure you are building for the correct board.
• Follow the PlatformIO documentation for build and upload process.

Merge requirements

• Complete #283 before merging this PR

Outstanding Issues

• 288

• 289

Documentation update

• None

Notes for Reviewer

• ⚠️WIP
  • IMU
  • The updateImuData() has some low level driver stuff pulled up to EmotiBit class to enable reading 12 bytes of data in a case when BMM150 is not present.
  • That needs to move back to the driver and not be scattered in EmotiBit.cpp
  • NVM controller & LedController
  • Currently, hwversion is passed to NVM controller to skip NVM init based on hw
  • This is spec'd to be changed in the future where a init call is controlled by EmotiBit based on hw version.
  • Since it may change, it is worth discussing the next move here.

Testing

Results

• Compiles and runs for Agave RevB
  • Successfully added WiFi creds to the SD Card
  • Streaming data over wifi to Oscilloscope
  • 🟡 Needs a fix to solve recording session

Feature Tests

Steps to test

Shared files

• Firmware binary: [Link to firmware binary]
• Other files.

Checklist to allow merge

• [ ] All dependent repositories used were on branch master
• Firmware
  • [ ] Set testingMode to TestingMode::NONE
  • [ ] Set const bool DIGITAL_WRITE_DEBUG = false (if set true while testing)
  • [ ] Update version in EmotiBit.h
  • [ ] Update library.properties to the correct version (should match EmotiBit.h)
• [ ] doxygen style comments included for new code snippets
• [ ] Required documentation updated

Screenshots:

[nitin710]

Closing this PR because:

1. it doesn't offer the most elegant solution to the problem.
2. Agave as an external board is not being added to the main codebase yet.

To consider:

• The ledController class may be extracted out of the PR/branch to later add to the mainline code.