Add schemas for form-based elicitation #488

Job	Run time
Client Conformance (initialize)	42s
Auth Conformance (auth/basic-cimd)	57s
Client Conformance (sse-retry)	45s
Auth Conformance (auth/scope-from-scopes-supported)	46s
Auth Conformance (auth/token-endpoint-auth-basic)	43s
Auth Conformance (auth/metadata-var3)	52s
Client Conformance (tools_call)	55s
Auth Conformance (auth/scope-retry-limit)	1m 3s
Auth Conformance (auth/scope-omitted-when-undefined)	48s
Auth Conformance (auth/pre-registration)	58s
Server Conformance	56s
Auth Conformance (auth/metadata-var2)	53s
Auth Conformance (auth/metadata-var1)	50s
Auth Conformance (auth/metadata-default)	50s
Client Conformance (elicitation-sep1034-client-defaults)	1m 5s
Auth Conformance (auth/token-endpoint-auth-post)	52s
Auth Conformance (auth/scope-step-up)	42s
Auth Conformance (auth/token-endpoint-auth-none)	45s
Auth Conformance (auth/scope-from-www-authenticate)	58s
	16m 20s

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