Complete revamp of the AST-Monitor application

Complete overhaul of the application As previous program code was messy and slow, the application has been written by scratch. The final product is an improvement in every aspect, as it is more reliable, modular, sturdy, less error-prone, faster and robuster.
Redesigned page for loading interval trainings Page for loading interval trainings has been significantly redesigned to be cleaner, since general training plan is depicted instead of separate intervals. A further change under the haul is also user-friendly, as the name of the file with an interval training can be random.
New log format Updated log format includes a header with short explanation of its meaning. In contrast to previous format, the new one contains timestamps of separate data dumps. In addition, it can also handle some exceptions (for example if some values to be dumped are non-existent).
Hardware configuration instructions AST-Monitor configuration instructions have been added to the repository. This enables an user to easily install all the requirements in order to run the AST-Monitor app on the physical device.
Updated README README has been updated with a fresh set of photos, schemes and additional text.
Many, many, many, many more changes, bugfixes and small improvements Unnecessary modules have been removed, new modules have been added, many bugs have been fixed.

firefly-cpp / AST-Monitor