8 new 5-note chord tests

ADDED:
Dominant add 6th - 7add6
Minor(Major) 9 - m/M9
Minor(Major) flattened 9 - m/Mb9
Dominant add augmented 9th - 7#9
Dominant flattened 5th add augmented 9th - 7b5#9
Dominant add flattened 9th - 7b9
Minor 7 flat 9 - m7b9
Minor 7 augmented 9 - m7#9

Chord tests left: 3
Unit Tests Failing: 600/966