Implement a ThreadLocalCache to improve read perf

[Linary]

Change-Id: I372fb5a56f374fc3993d8bdcbbb0ef07b5f160c7

[javeme]

check capacity and throw if ooc

[codecov]

Codecov Report

Merging #1155 into master will increase coverage by 35.90%.
The diff coverage is 0.00%.

@@              Coverage Diff              @@
##             master    #1155       +/-   ##
=============================================
+ Coverage     29.65%   65.56%   +35.90%     
- Complexity      263     5654     +5391     
=============================================
  Files            75      358      +283     
  Lines          4208    28967    +24759     
  Branches        510     4059     +3549     
=============================================
+ Hits           1248    18992    +17744     
- Misses         2797     8089     +5292     
- Partials        163     1886     +1723     

Impacted Files	Coverage Δ	Complexity Δ
...om/baidu/hugegraph/backend/cache/CacheManager.java	71.42% <0.00%> (ø)	12.00 <0.00> (?)
...baidu/hugegraph/backend/cache/OptimisticCache.java	0.00% <0.00%> (ø)	0.00 <0.00> (?)
...aidu/hugegraph/backend/cache/ThreadLocalCache.java	0.00% <0.00%> (ø)	0.00 <0.00> (?)
...aidu/hugegraph/backend/store/raft/RaftClosure.java	0.00% <0.00%> (ø)	0.00% <0.00%> (?%)
...va/com/baidu/hugegraph/analyzer/JcsegAnalyzer.java	78.94% <0.00%> (ø)	4.00% <0.00%> (?%)
...ugegraph/backend/serializer/SerializerFactory.java	89.65% <0.00%> (ø)	10.00% <0.00%> (?%)
...h/job/computer/WeakConnectedComponentComputer.java	0.00% <0.00%> (ø)	0.00% <0.00%> (?%)
...ackend/store/cassandra/CassandraEntryIterator.java	86.66% <0.00%> (ø)	20.00% <0.00%> (?%)
...egraph/backend/store/mysql/MysqlStoreProvider.java	100.00% <0.00%> (ø)	6.00% <0.00%> (?%)
...du/hugegraph/backend/store/hbase/HbaseMetrics.java	0.00% <0.00%> (ø)	0.00% <0.00%> (?%)
... and 280 more

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[Linary]

After the loader performance test, there is no obvious performance improvement for the two caches, so close this pr