Subtitle support

[senadxxx]

These are clones yumatu,globo,truman and opticum who currently have the support of subtitles

DVB subtitle support:

Yumatu - Sapphire "NO"
YUMATU MX SERIES "NO"
YUMATU MX COMBO "NO"



YUMATU IQ "YES"
YUMATU IQ+ "YES"
YUMATU MX+ "YES"
YUMATU DIAMOND "YES"