[TUBEMQ-579] Add structure mapping of BDB and metadata entity classes

[gosonzhang]

1. Add APIs to convert BDB storage objects into corresponding metadata objects, convert metadata objects into BDB storage objects;
2. Adjust the current implementation of BDB and add the extension fields operation API;
3. Adjust the Token definition of the extension fields and summarize it into one file;

[codecov-io]

Codecov Report

Merging #445 (b142f94) into TUBEMQ-570 (ca66b85) will decrease coverage by 0.08%.
The diff coverage is 0.00%.

@@               Coverage Diff               @@
##             TUBEMQ-570    #445      +/-   ##
===============================================
- Coverage          7.39%   7.30%   -0.09%     
- Complexity          478     481       +3     
===============================================
  Files               279     281       +2     
  Lines             29956   30368     +412     
  Branches           4850    4873      +23     
===============================================
+ Hits               2215    2219       +4     
- Misses            27266   27676     +410     
+ Partials            475     473       -2     

Impacted Files	Coverage Δ	Complexity Δ
...ava/org/apache/tubemq/corebase/TokenConstants.java	0.00% <ø> (ø)	0.00 <0.00> (ø)
.../apache/tubemq/server/common/TServerConstants.java	0.00% <ø> (ø)	0.00 <0.00> (ø)
...emq/server/common/exception/LoadMetaException.java	0.00% <0.00%> (ø)	0.00 <0.00> (?)
...e/tubemq/server/common/statusdef/EnableStatus.java	0.00% <0.00%> (ø)	0.00 <0.00> (?)
...server/master/bdbstore/DefaultBdbStoreService.java	0.00% <0.00%> (ø)	0.00 <0.00> (ø)
...aster/bdbstore/bdbentitys/BdbBlackGroupEntity.java	0.00% <0.00%> (ø)	0.00 <0.00> (ø)
...aster/bdbstore/bdbentitys/BdbBrokerConfEntity.java	0.00% <0.00%> (ø)	0.00 <0.00> (ø)
...r/bdbstore/bdbentitys/BdbClusterSettingEntity.java	0.00% <0.00%> (ø)	0.00 <0.00> (ø)
...store/bdbentitys/BdbConsumeGroupSettingEntity.java	0.00% <0.00%> (ø)	0.00 <0.00> (ø)
...er/bdbstore/bdbentitys/BdbConsumerGroupEntity.java	0.00% <0.00%> (ø)	0.00 <0.00> (ø)
... and 26 more

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[dockerzhang]

+1