Implement bard song instrument mod caps

The maximum bard songs can be effected by instrument mods is 3.6.
This is set by the rule Character:BaseInstrumentSoftCap which defaults to 36
Also fix Echo of Taelosia and Ayonae's Tutelage to increase the mod cap.
Implemented Singing/Instrument Mastery as an AA bonus

Don't forget to source the SQL file!
Fix last commit ....