VRFv2: Doc strings, UX improvements, QA (#5246)

* Doc strings, UX improvements

* Fix tests

* Remaining tests cases, bug fix from the sub exhaustion testcase

* Cleanup

* Fix operator ui test

* Hide s_ convention from abi

* Inherit docs from interface

Co-authored-by: Steve Ellis <email@steveell.is>

* Fix inherit docstrings

Co-authored-by: autorebase-bot <92488320+autorebase-bot@users.noreply.github.com>
Co-authored-by: Steve Ellis <email@steveell.is>

GNUmakefile

@@ -80,6 +80,10 @@ go-solidity-wrappers: tools/bin/abigen ## Recompiles solidity contracts and thei
 testdb: ## Prepares the test database
 	go run ./core/main.go local db preparetest
 
+.PHONY: testdb
+testdb-user-only: ## Prepares the test database
+	go run ./core/main.go local db preparetest --user-only
+
 # Format for CI
 .PHONY: presubmit
 presubmit: