feature: Add High-Resolution LC3 plus mode

Duplicate interfaces for HR mode

spec: Remove intermediate quantized table

fix: legacy lc3_frame_bytes() and lc3_resolve_bitrate()

Cosmetic: rename fast_xxx math function to lc3_xxx

src/sns.h

@@ -42,6 +42,7 @@ typedef struct lc3_sns_data {
 /**
  * SNS analysis
  * dt, sr          Duration and samplerate of the frame
+ * nbytes          Size in bytes of the frame
  * eb              Energy estimation per bands, and count of bands
  * att             1: Attack detected  0: Otherwise
  * data            Return bitstream data
@@ -50,7 +51,8 @@ typedef struct lc3_sns_data {
  *
  * `x` and `y` can be the same buffer
  */
-void lc3_sns_analyze(enum lc3_dt dt, enum lc3_srate sr,
+void lc3_sns_analyze(
+    enum lc3_dt dt, enum lc3_srate sr, int nbytes,
     const float *eb, bool att, lc3_sns_data_t *data,
     const float *x, float *y);