[ISSUE #1092] Add eventmesh-catalog java client

[walterlife]

Fixes #1092 .

Motivation

add eventmesh-catalog java client

Modifications

java sdk add eventmesh-catalog java client

Documentation

• Does this pull request introduce a new feature? (yes / no)
• If yes, how is the feature documented? (not applicable / docs / JavaDocs / not documented)
• If a feature is not applicable for documentation, explain why?
• If a feature is not documented yet in this PR, please create a followup issue for adding the documentation

[codecov]

Codecov Report

Merging #1464 (0a4675e) into master (8dbaa00) will decrease coverage by 0.03%.
The diff coverage is 0.00%.

@@             Coverage Diff              @@
##             master    #1464      +/-   ##
============================================
- Coverage     10.41%   10.37%   -0.04%     
  Complexity      779      779              
============================================
  Files           443      445       +2     
  Lines         26930    27023      +93     
  Branches       2937     2959      +22     
============================================
  Hits           2804     2804              
- Misses        23866    23959      +93     
  Partials        260      260              

Impacted Files	Coverage Δ
...entmesh/client/catalog/EventMeshCatalogClient.java	0.00% <0.00%> (ø)
...t/catalog/config/EventMeshCatalogClientConfig.java	0.00% <0.00%> (ø)
.../core/protocol/http/push/AsyncHTTPPushRequest.java	0.00% <0.00%> (ø)

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