Details about mockapi rule

mockapi rule about check logic in mockapi.ts:

• Only check whether the required property exist like: https://github.com/Azure/cadl-ranch/blob/aa782b96539185cae59ae85aafe283e04a225056/packages/cadl-ranch-specs/http/models/input-basic/mockapi.ts#L7-L10
• Comment the expected requstBody in @scenarioDoc of main.cadl and check whether received requestBody is exactly same with expected requestBody like: https://github.com/Azure/cadl-ranch/blob/c1aecffe73b1a30ba22c554353b42548766301bc/packages/cadl-ranch-specs/http/models/collections-basic/mockapi.ts#L8-L9.

Both are ok and please choose one to implement the mockapi.ts