Provide a way to fill the parameter path of an annotated service in DocService

[ikhoon]

Only an exact path is set to the ENDPOINT PATH on the debug page.

armeria/docs-client/src/containers/MethodPage/DebugPage.tsx

Lines 183 to 191 in b84e3f0

	if (
	serviceType === ServiceType.HTTP ||
	serviceType === ServiceType.GRAPHQL
	) {
	if (exactPathMapping) {
	urlPath = extractUrlPath(method);
	} else {
	urlPath = urlParams.get('endpoint_path') || '';
	}

I received a suggestion from an internal customer to also fill in ENDPOINT PATH with a parameterized path. It will allow developers to type less.

However, since a parameterized path is not an exact endpoint path, it would be better to set it selectively only when the user wants it.

DocService
  .builder()
  .endpointPathType(EXACT, PARAMETERIZED, ...)