Support 17 apis
New:
- describeServicesStatus
- describeService
- createService
- modifyService
- deleteService
- describeApisStatus
- describeApi
- createApi
- modifyApi
- deleteApi
- releaseService
- describeServiceEnvironmentList
- unReleaseService
- describeServiceReleaseVersion
- describeUsagePlansStatus
- describeUsagePlan
- createUsagePlan