List Admin fields that affect GraphQL responses

[keharper]

Type of Doc:

• New topic
• Topic Update, Devdoc link:
• Other

Magento 2 GitHub Issue: magento/graphql-ce#25

Magento 2 GitHub PRs:
magento/graphql-ce#103
magento/graphql-ce#112

Magento 2 version:

• 2.1.X
• 2.2.X
• 2.3.X
• back port
• forward port

Notifications of Changes:

• Changes to Admin interface?
• New software requirements?
• New REST endpoints or updated GraphQL query syntax?
• New command line option?

Content:

List fields in Admin that affect the results of GraphQL queries.
Add documentation for breadcrumb support in Catalog

[keharper]

Updates originating from GraphQL PR-112 addressed in PR-2767

[keharper]

Updates originating from GraphQL PR-103 addressed in #2885