FTF changes for ivas_qmetadata_to_dirac_fx and ivas_dirac_dec_set_md_map

Added changes for the following funcitons:
[x] ivas_qmetadata_to_dirac_fx()
[x] ivas_dirac_config_bands_fx()
[x] rand_triangular_signed_fx()
[x] ivas_dirac_dec_set_md_map()
[x] ivas_jbm_dec_get_adapted_subframes()
[x] ivas_jbm_dec_get_md_map_even_spacing()
[x] ivas_jbm_dec_get_md_map()
[x] ivas_get_hodirac_flag_fx()
[x] ivas_get_bits_to_encode_fx()
[x] ivas_get_spar_table_idx_fx()