Move Tray actions to tray tool

[iLLiCiTiT]

Please describe the feature you have in mind and explain what the current shortcomings are?

There are 3 actions Launcher and Loader which add actions to run python console interpreter, launcher and loader tool. Their actions are defined via addons in ayon_core/modules but they should be defined by tray tool.

How would you imagine the implementation of the feature?

Remove addons from modules folder and add them as actions in tray tool.

We should also change label and title of Loader to Browser and add Publish report viewer action (it can be launched only via cli now).

Python console interpreter should be converted to full tool, with custom controller for tray.