Support to verify license

[Linary]

Change-Id: Ia3fb6b38a032442e1d8bf7cee4d7b4032dc219df

[javeme]

1 set key: server-1, server-2, ..., hubble-1, hubble-2, ...
2 limit cpu/ram
3 split code and move to common

[javeme]

add version check

[codecov]

Codecov Report

Merging #645 into master will increase coverage by 0.02%.
The diff coverage is 14.28%.

@@             Coverage Diff              @@
##             master     #645      +/-   ##
============================================
+ Coverage     72.93%   72.95%   +0.02%     
- Complexity     3926     3928       +2     
============================================
  Files           218      218              
  Lines         17716    17720       +4     
  Branches       2541     2542       +1     
============================================
+ Hits          12921    12928       +7     
+ Misses         3471     3467       -4     
- Partials       1324     1325       +1

Impacted Files	Coverage Δ	Complexity Δ
.../java/com/baidu/hugegraph/version/CoreVersion.java	80% <ø> (ø)	2 <0> (ø)	⬇️
...java/com/baidu/hugegraph/dist/HugeGraphServer.java	0% <0%> (ø)	0 <0> (ø)	⬇️
...ain/java/com/baidu/hugegraph/task/TaskManager.java	65.71% <50%> (-0.96%)	13 <0> (ø)
...du/hugegraph/backend/tx/GraphIndexTransaction.java	80.74% <0%> (+0.39%)	175% <0%> (ø)	⬇️
...ugegraph/backend/store/memory/InMemoryDBTable.java	82.29% <0%> (+1.04%)	36% <0%> (+1%)	⬆️
...c/main/java/com/baidu/hugegraph/util/JsonUtil.java	64.15% <0%> (+5.66%)	6% <0%> (+1%)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 0184a63...3328a85. Read the comment docs.