Set GremlinServer default channelizer to WsAndHttpChannelizer

[Linary]

implement #92
Change-Id: Ib8f121d98357af2e3990ebe7f5eee4c9c15e763e

[codecov]

Codecov Report

Merging #903 into master will increase coverage by 0.09%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##             master     #903      +/-   ##
============================================
+ Coverage     72.13%   72.23%   +0.09%     
- Complexity     4456     4486      +30     
============================================
  Files           287      287              
  Lines         21227    21412     +185     
  Branches       2992     3017      +25     
============================================
+ Hits          15313    15467     +154     
- Misses         4401     4432      +31     
  Partials       1513     1513              

Impacted Files	Coverage Δ	Complexity Δ
...ava/com/baidu/hugegraph/backend/page/IdHolder.java	74.35% <0.00%> (-11.36%)	1.00% <0.00%> (-12.00%)
...om/baidu/hugegraph/backend/query/QueryResults.java	79.38% <0.00%> (-7.77%)	39.00% <0.00%> (+6.00%)	⬇️
...ugegraph/backend/page/SortByCountIdHolderList.java	88.46% <0.00%> (-5.66%)	4.00% <0.00%> (+1.00%)	⬇️
...om/baidu/hugegraph/api/filter/ExceptionFilter.java	62.36% <0.00%> (-4.31%)	0.00% <0.00%> (ø%)
.../java/com/baidu/hugegraph/backend/query/Query.java	84.37% <0.00%> (-2.62%)	89.00% <0.00%> (+19.00%)	⬇️
...api/src/main/java/com/baidu/hugegraph/api/API.java	66.29% <0.00%> (-1.53%)	0.00% <0.00%> (ø%)
...du/hugegraph/backend/tx/GraphIndexTransaction.java	79.85% <0.00%> (-1.21%)	185.00% <0.00%> (+5.00%)	⬇️
.../hugegraph/backend/store/rocksdb/RocksDBTable.java	76.59% <0.00%> (-0.73%)	33.00% <0.00%> (ø%)
...gegraph/backend/serializer/BinaryBackendEntry.java	82.27% <0.00%> (-0.62%)	28.00% <0.00%> (ø%)
...c/main/java/com/baidu/hugegraph/task/HugeTask.java	70.93% <0.00%> (-0.39%)	64.00% <0.00%> (-1.00%)
... and 33 more

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