[ExpandedStash] Added custom stash tab names option

[Caedendi]

Adds settings to the ExpandedStash mod to rename the stash tabs to whatever you'd like:

• a master switch to enable/disable all names set below
• 7 text fields for each stash tab from left to right

[Caedendi]

Pushed a fix for the broken settings, mod should now work as intended. It was pretty late when I wrote the first commit lol.