To make the switching of separators complete, it is also important to
know whether the decoding of path segment values and the parsing of
path param should be done as those are applied transparently.
This commit replaces the recently added separator argument to
PathContainer.parsePath with an Options type with two predefined
constants. One for HTTP URLs with automatic decoding and parsing of
path params, and another for "." separated message routes without
decoding except for encoded sequences of the separator itself.
See gh-23310
358a6d6f10