Introduce tests for DELETE Verification

Added tests that allow for the verification of DELETE requests. Headers
can be verified through the internal DSL. Body verification will throw
exception.
Introduce tests for HEAD Verification

Added tests that allow for the verification of HEAD requests. Headers
can be verified through the internal DSL. Body verification will throw
exception.
Introduce tests for OPTIONS Verification

Added tests that allow for the verification of OPTIONS requests. Headers
can be verified through the internal DSL. Body verification will throw
exception.