Broaden definition for ceterms:availabilityListing

[jeannekitchens]

Change the current definition for https://credreg.net/ctdl/terms/availabilityListing#availabilityListing: Listing of online and/or physical locations where a credential can be pursued.

To: Listing of online and/or physical locations where a credential, assessment, or learning opportunity can be pursued.

This will put the defintion in alignment with:

• https://credreg.net/ctdl/terms/availableAt
• https://credreg.net/ctdl/terms/availableOnlineAt

[philbarker]

Need also to accommodate Organization from domain:

Listing of online and/or physical locations where a resource can be found or pursued.