Refactor packages

[pleshakov]

Discussed in #707

^{Originally posted by pleshakov June 1, 2023}

After provisioner mode related code was merged 1df6bcd , we have 2 components in the internal package:

• provisioner mode
• static mode

Additionally, we have shared "framework" code that both provisioner and static mode use.

To reflect that, for better code organization, refactor the packages as below:

- internal
  - provisonermode
     - manager.go
     ... other files
  - staticmode
     - manager.go
     - nginx
     - state
     - status // status-related code, only relevant for static mode
  - framework // common framework code
    - events
    - controller
    - helpers
    - status // general purpose status-related code, both relevant for provisioner and static mode

As part of it, refactor the status package into two package, so that the one in framework/status doesn't depend on the graph.