tflite_micro_compiler

Generate tflite micro code which bypasses the interpreter (directly calls into kernels)

Basically this code uses a fully set up tflite micro instance to dump the internal allocations and function calls assigned to the model, then dumps the tensor and node settings into a compilable file, eliminating the need for running the interpreter at each program start and for resolving the correct kernel at run time.

An in depth explanation of the motivation and benefits is included in the matching RFC: https://docs.google.com/document/d/1wDqC50sjCaWyQxsSn_Y-XAGh8-ozIgm2HDzX_b9DIyo/edit?usp=sharing