[Capact CLI] Build in an option to wait for a given Action state

[mszostok]

Description

Currently, in most of our tutorials/documentations, we require from user to wait for a given Action state. For example:

3. Get the status of the Action from the previous step:

```
capact action get mattermost
```
Wait until the Action is in `READY_TO_RUN` state. 

or

3. Wait until the Action is in `READY_TO_RUN` status:
   ```bash
   watch -n 1 capact action get bigbang
   ```

It can be easily replaced with such syntax sugar:

capact act wait --for=phase=READY_TO_RUN

(inspired by kubectl wait command)

Reason

Get rid of external CLI usage and simplify waiting for a given Action state.

Use cases

• System User - has an easy built-in option to wait for a given Action state.