ASS Conversion & styling

[Noxyntious]

this PR adds very basic ASS conversion with minimal formatting, only background color as of now
executed with --format ass in cmdline

some of this code might be extremely messy

[korewaChino]

love yourself

[Noxyntious]

thank you

[Noxyntious]

with the commit above, ASS styling is pretty much 99% done
only issue remains that a font size is the same for one paragraph, as it doesn't recognize multiple pen IDs in one line, only one pen ID

YTSC:
Dialogue: 0,0:00:45.06,0:00:45.26,YTGlow,,0,0,0,,{\an5\pos(640,643.392)\fnTimes New Roman\fs55.765}so there {\fs60.8}aren’t, {\fs55.765}there {\fs60.8}aren’t {\fs68.4}any people {\fs58.235}here.

YTTML:
Dialogue: 0,0:00:44.86,0:00:45.06,YTHardShadow,,25,25,15,,{\an5\pos(640.000,643.392)\3c&H000000\1c&HFEFEFE\fnTimes New Roman\fs56}​​​ ​so there​aren’t,​there​aren’t​any peoplehere.​ ​​

[Noxyntious]

fixed