Moving the SILK fixed-point and float files

silk/float/SKP_Silk_corrMatrix_FLP.c

silk/float/SKP_Silk_encode_frame_FLP.c

silk/float/SKP_Silk_find_LPC_FLP.c

silk/float/SKP_Silk_find_LTP_FLP.c

silk/float/SKP_Silk_find_pitch_lags_FLP.c

silk/float/SKP_Silk_find_pred_coefs_FLP.c

silk/float/SKP_Silk_noise_shape_analysis_FLP.c

silk/float/SKP_Silk_prefilter_FLP.c

silk/float/SKP_Silk_process_gains_FLP.c

silk/float/SKP_Silk_regularize_correlations_FLP.c

silk/float/SKP_Silk_residual_energy_FLP.c

silk/float/SKP_Silk_solve_LS_FLP.c

silk/float/SKP_Silk_warped_autocorrelation_FLP.c

silk/float/SKP_Silk_wrappers_FLP.c

silk_sources.mk