[Feature Request] Support for Enhanced .lrc lyrics files

[omgukk]

SM currently supports simple lrc format allowing lyrics to be displayed as a song plays.

Enhanced LRC format is an extension of Simple lrc Format developed by the designer of A2 Media Player.

The differences:

• The line timestamp is the end of the previous word.

• • This allows LRC players to determine the duration of the previous word, and when to display the next line.

• Adds a Word Time Tag in the format: mm:ss.xx.

This would allow for more accurate timing when the lyrics are being displayed on screen for each word.

Format example:

[mm:ss.xx] <mm:ss.xx> line 1 word 1 <mm:ss.xx> line 1 word 2 <mm:ss.xx> ... line 1 last word <mm:ss.xx>
[mm:ss.xx] <mm:ss.xx> line 2 word 1 <mm:ss.xx> line 2 word 2 <mm:ss.xx> ... line 2 last word <mm:ss.xx>
...
[mm:ss.xx] <mm:ss.xx> last line word 1 <mm:ss.xx> last line word 2 <mm:ss.xx> ...  last line last word <mm:ss.xx>

Example of an Enhanced LRC file:

[ar: Jefferson Airplane]
[al: Surrealistic Pillow]
[au: Jefferson Airplane]
[length: 2:58]
[by: lrc-maker]
[ti: Somebody to Love]

[00:00.00] <00:00.04> When <00:00.16> the <00:00.82> truth <00:01.29> is <00:01.63> found <00:03.09> to <00:03.37> be <00:05.92> lies 
[00:06.47] <00:07.67> And <00:07.94> all <00:08.36> the <00:08.63> joy <00:10.28> within <00:10.53> you <00:13.09> dies 
[00:13.34] <00:14.32> Don't <00:14.73> you <00:15.14> want <00:15.57> somebody <00:16.09> to <00:16.46> love