Float code cleanup, BASOP addition and instrumentation

[x] hoa_encoder float cleanup and hoa_encoder_fx made as Q31
[x] BASOP and instrumentation code added

EVS 26.444 BE test passes.
pytests results: 597 failed, 381 skipped

MLD scores:
Original inputs:
MLD > 10: 60
MLD > 5 : 127
MLD < 5 : 410

+10dB inputs:
MLD > 10: 190
MLD > 5 : 200
MLD < 5 : 207

-10dB inputs:
MLD > 10: 23
MLD > 5 : 68
MLD < 5 : 506