ivas_binRenderer_internal.c float to fix conversion.

[x] Few of functions and subfunctions in ivas_binRenderer_internal.c converted to fixed.\

Testing:
[x] Decoder pytest: 567 failed, 2 passed, 381 skipped.
[x] MLD test: There is a deviation of more than MLD score of 5 for 19 files. However, the deviations are observed in Linux only and not in Windows. Debugging in progress.