add grant permission api

[javeme]

Change-Id: Icda7ae87d00239ea89ef95573228498a254a451b

[codecov]

Codecov Report

Merging #985 into master will increase coverage by 8.86%.
The diff coverage is 34.52%.

@@             Coverage Diff              @@
##             master     #985      +/-   ##
============================================
+ Coverage     60.86%   69.73%   +8.86%     
- Complexity     4228     5126     +898     
============================================
  Files           314      320       +6     
  Lines         24288    24834     +546     
  Branches       3393     3465      +72     
============================================
+ Hits          14784    17319    +2535     
+ Misses         7887     5853    -2034     
- Partials       1617     1662      +45     

Impacted Files	Coverage Δ	Complexity Δ
...idu/hugegraph/api/filter/AuthenticationFilter.java	34.72% <ø> (ø)	0.00 <0.00> (ø)
.../java/com/baidu/hugegraph/api/users/AccessAPI.java	0.00% <0.00%> (ø)	0.00 <0.00> (?)
.../java/com/baidu/hugegraph/api/users/BelongAPI.java	0.00% <0.00%> (ø)	0.00 <0.00> (?)
...n/java/com/baidu/hugegraph/api/users/GroupAPI.java	0.00% <0.00%> (ø)	0.00 <0.00> (?)
.../java/com/baidu/hugegraph/api/users/TargetAPI.java	0.00% <0.00%> (ø)	0.00 <0.00> (?)
...in/java/com/baidu/hugegraph/api/users/UserAPI.java	0.00% <0.00%> (ø)	0.00 <0.00> (?)
.../com/baidu/hugegraph/auth/ConfigAuthenticator.java	0.00% <0.00%> (ø)	0.00 <0.00> (ø)
...va/com/baidu/hugegraph/auth/HugeAuthenticator.java	15.05% <0.00%> (-0.51%)	0.00 <0.00> (ø)
...com/baidu/hugegraph/auth/HugeFactoryAuthProxy.java	0.00% <0.00%> (ø)	0.00 <0.00> (ø)
...a/com/baidu/hugegraph/auth/HugeGraphAuthProxy.java	4.77% <0.00%> (-1.84%)	0.00 <0.00> (ø)
... and 160 more

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