feat: support tencentcloud remote store

[fengxsong]

This PR support tencentcloud as remote store. besides it does the following changes

1. I've add a StoreCreator interface, then every remote stores can focused on their own implementation without taking too much changes in the NewStore function. (the changes might be somewhat significant in a single PR, and, of course, you might feel that these changes are unnecessary :( )
2. support run this controller with CLI arguments.
3. it's quite noise as there are too much debug/trace logs

[robertlestak]

@fengxsong this is awesome thank you! conceptually, the StoreCreator interface is exactly what i was going for - as you said, let the providers focus on their cloud-specific business logic.

as this is quite a significant PR (and I have a day job 😄) please allow me some time to review and test in my environment, but do know this is on my radar and i am excited to get this merged in!