Add URL elicitation support (SEP-1036) #466

Job	Run time
Client Conformance (sse-retry)	50s
Client Conformance (elicitation-sep1034-client-defaults)	43s
Client Conformance (initialize)	46s
Server Conformance	53s
Client Conformance (tools_call)	50s
Auth Conformance (auth/token-endpoint-auth-basic)	48s
Auth Conformance (auth/metadata-var2)	44s
Auth Conformance (auth/scope-step-up)	44s
Auth Conformance (auth/scope-omitted-when-undefined)	55s
Auth Conformance (auth/token-endpoint-auth-none)	44s
Auth Conformance (auth/metadata-var1)	45s
Auth Conformance (auth/scope-retry-limit)	41s
Auth Conformance (auth/metadata-var3)	47s
Auth Conformance (auth/basic-cimd)	46s
Auth Conformance (auth/metadata-default)	48s
Auth Conformance (auth/token-endpoint-auth-post)	43s
Auth Conformance (auth/scope-from-scopes-supported)	51s
Auth Conformance (auth/pre-registration)	45s
Auth Conformance (auth/scope-from-www-authenticate)	51s
	14m 54s

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