Add swagger support for SOFARPC restful

[khotyn]

Add swagger support for SOFARPC restful services.

[khotyn]

Users can add swagger dependencies and add com.alipay.sofa.rpc.rest-swagger=true in applications.properties to enable swagger openapi support, the swagger openapi will be available at http://localhost:8341/swagger/openapi

[codecov]

Codecov Report

Merging #131 into master will increase coverage by 0.96%.
The diff coverage is 67.27%.

@@             Coverage Diff             @@
##             master    #131      +/-   ##
===========================================
+ Coverage     57.33%   58.3%   +0.96%     
- Complexity      417     436      +19     
===========================================
  Files            54      56       +2     
  Lines          1751    1806      +55     
  Branches        313     318       +5     
===========================================
+ Hits           1004    1053      +49     
- Misses          541     548       +7     
+ Partials        206     205       -1

Impacted Files	Coverage Δ	Complexity Δ
...oot/swagger/SwaggerServiceApplicationListener.java	100% <100%> (ø)	3 <3> (?)
...ay/sofa/rpc/boot/SofaBootRpcAutoConfiguration.java	95.45% <100%> (+0.21%)	15 <1> (+1)	⬆️
...ipay/sofa/rpc/boot/swagger/SwaggerServiceImpl.java	56.41% <56.41%> (ø)	9 <9> (?)
...ay/sofa/rpc/boot/config/SofaBootRpcProperties.java	56.65% <66.66%> (+0.15%)	89 <1> (+1)	⬆️
...sofa/rpc/boot/container/ServerConfigContainer.java	83.33% <0%> (+0.5%)	45% <0%> (+1%)	⬆️
...ipay/sofa/rpc/boot/runtime/binding/RpcBinding.java	39.34% <0%> (+1.63%)	15% <0%> (+1%)	⬆️
...fa/rpc/boot/runtime/adapter/RpcBindingAdapter.java	42.37% <0%> (+15.25%)	6% <0%> (+2%)	⬆️
.../sofa/rpc/boot/runtime/param/RestBindingParam.java	100% <0%> (+50%)	2% <0%> (+1%)	⬆️

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[JervyShi]

Should avoid using import * here. You can change idea settings from Editor - Code Style - Java - Imports - import with '*' to 999 etc and then format code again.

[khotyn]

Changed as you suggested.

[JervyShi]

+1

[leizhiyuan]

we will not change version to stable version number until we prepare to release, so we can release some snapshot for test.

[khotyn]

@leizhiyuan You mean sofaboot-dependencies's version?

[leizhiyuan]

ok, I see,sofaboot-dependencies 310 has released four days ago.

[leizhiyuan]

after ci，I will merge this pr to master