change Role**Service to interface impl

[timothynode]

change RoleInitializationService and RolePermissionService to interface implement.

[coveralls]

Coverage increased (+0.02%) to 50.114% when pulling 529343d8b3877387ea17266a1c2b4639afe46972 on timothynode:master into bc0e484 on ctripcorp:master.

[codecov-io]

Codecov Report

Merging #604 into master will increase coverage by <.01%.
The diff coverage is 92.46%.

@@             Coverage Diff              @@
##             master     #604      +/-   ##
============================================
+ Coverage     46.55%   46.56%   +<.01%     
- Complexity     1451     1453       +2     
============================================
  Files           338      339       +1     
  Lines          9238     9241       +3     
  Branches        911      911              
============================================
+ Hits           4301     4303       +2     
  Misses         4611     4611              
- Partials        326      327       +1

Impacted Files	Coverage Δ	Complexity Δ
...lo/portal/spi/configuration/AuthConfiguration.java	10% <ø> (ø)	1 <0> (ø)	⬇️
.../defaultimpl/DefaultRoleInitializationService.java	100% <100%> (ø)	11 <11> (?)
...lo/portal/spi/configuration/RoleConfiguration.java	100% <100%> (ø)	3 <3> (?)
.../spi/defaultimpl/DefaultRolePermissionService.java	87.77% <87.77%> (ø)	24 <24> (?)
.../apollo/internals/RemoteConfigLongPollService.java	80.28% <0%> (-0.71%)	22% <0%> (-1%)

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[coveralls]

Coverage increased (+0.02%) to 50.114% when pulling 701a384 on timothynode:master into bc0e484 on ctripcorp:master.