Add Vizio V51-H6 Soundbar
POWER, PLAY, PAUSE, VOL+, VOL-, MUTE, PREV, NEXT, INPUT, HDMI_ARC, OPTICAL, AUX_VA, AUX, USB BLUETOOTH, EQ_DIRECT, EQ_MOVIE, EQ_MUSIC, EQ_GAME, BASS+, BASS-, TREBLE+, TREBLE-, DIALOGUE+, DIALOGUE-, CENTER+, CENTER-, SUBWOOF+, SUBWOOF-, SURRLVL+, SURRLVL-, INFO, INPUT_SRCH, SPKR_TEST, SRND_ON, SRND_OFF, SRND_FRNT, SRND_DUAL, VRTX_ON, VRTX_OFF, TRUVOL_ON, TRUVOL_OFF, NIGHT_ON, NIGHT_OFF, ECOPWR_ON, ECOPWR_OFF, PWRLED_ON, PWRLED_OFF, AV_DELAY+, AV_DELAY-, VZTV_ON, VZTV_OFF, RST_AUDIO, RESET_ALL