Fix assembly and change version to SNAPSHOT

Fix assmbly for mvn clean install -Papache-release and update version to SNAPSHOT for SNAPSHOT release.

Fix javadoc for preparing for our first ASF release.

Fixing javadoc. And try to trigger a ci fail in this commit, in order to make sure javadoc will be checked in further pull request.

[Agent] fix HierarchyMatch donot support generic type

[Agent] fix the servicecomb-1.x-plugin build failure in local workdir

Add [Agent] V1 servicecomb  plugin

Adjust build guide document.

Fix format in cn

Fix format

UI has already included in main repo.

UI has already included in main repo.

Add links to resources catalog

Update submodule.

Using submodule to link protocol and UI