Various bugfixes

[aofengen]

There are two separate bugfixes in this PR:

1. Currently hint plandos only allow for things defined as items in ItemList.py as valid choices for the "item_hints" block. However other locations in the project allow for non-item defined options to be added to this block (see data/Bingo/generic_bingo_hints"). This PR allows for non-item defined choices to be used in a hint plando (songs, keys, etc). This can be tested via the following plando currently:

"settings": {
	"item_hints":                              ["Zeldas Lullaby"]
}

Valid types will be those that have an item declared that type in ItemList.py and a hint for that item in HintList.py - This change is reflected in the changes to SettingsList.py

2. The coop hint distribution is only used for the co-op tournament, but at present does not allow for generating any seeds because there aren't enough hints present and/or weights used. This fix changes the hint distro to generate valid seeds until the coop tournament admins are ready to update it for the next tournament. This change is reflected in data/hints/coop.json

[aofengen]

will reopen in a moment because past me is bad at github

[fenhl]

For reference: Reopened as #2157 and #2158.