Kit inherits abilities from base class when multikits already exist.

[SarahG-579462]

E.g. if multi Eldritch Knight from Artisan's Kitpack is installed, then Dreadnaught/Lathander gains Rapid Shot and Expertise.

[SarahG-579462]

see #2, a similar issue that took a while to fix.

[SarahG-579462]

Fix would be:
1- check if QD_Multi already exists
2- if not, create it
3- for every unique kit in qd_multi, plus the base class, add the base class abilities as effects

(currently I only do 2 and 3 for the base class)

Will also need a fix for merging clabs

if I plan on making something like Eldritch Knight/Cleric kits possible, I might need a different architecture. Problem for later...