Signed-off-by: llhuii <liulinghui@huawei.com>

Make all controllers sharing with:
1. kubernetes client, and informerFactory with random resync period.
2. sedna crd client, and informerFactory with random resync period.

This can reduce code and improve slim performance.

Signed-off-by: llhuii <liulinghui@huawei.com>

Split upstream controller, merge each feature CR logic code into its
controller.

Signed-off-by: llhuii <liulinghui@huawei.com>

All controllers are placed into globalmanager/controllers:
1. each feature has the independent subdirectory
2. upstream/downstream are kept as top level.

Commom types/utils/worker.go are placed into globalmanager/runtime.

Signed-off-by: llhuii <liulinghui@huawei.com>