Init: Using CUE to implement OAM model on Kubernetes server side
* vela server
* fix refator
* lint code
* vela server
* fix refator
* lint code
* rebase upstream
* remove lister
* add vela-server sample
* fix lint error
* fix lint error
* fix check-diff error
* add test case
* add test case for application controller
* add reconciler test with ginkgo
* remove make server
* remove the kustomize scripts
* fix units test bug
* config direct
* suite test
* add application validater
Co-authored-by: lj176172 <lj176172@alibaba-inc.com>