[JCLOUDS-1430] Aliyun ECS

- add instance API
- add compute abstraction
- add validation for vpc and vSwitch IDs
- add builders for Image and Instance
- add unit tests for compute/functions
- add pagination to instanceStatus api
- rename provider id
- clean up code
- add network apis
- vpc api + tests
- vswitch api + tests
- improve CreateResourcesThenCreateNodes
- create default vpc and vswitch in case needed
- fix InstanceApiLiveTest
- add ECSDependencyViolationRetryHandler
- add ErrorRetryHandler
- fix ListImagesOptions.imageId
- fix enums in Instance and EIPAddress