Chore: Use folder path in current context

[iLLiCiTiT]

Changelog Description

Use folder_path instead of asset_name in current context and context data.

Additional info

This is minimalistic PR changing just the keys used when data for context are read or defined.

Breaks backwards compatibility on current context data and launch hooks. Launch hooks don't have access to asset_name in data.

Testing notes:

1. Application can launch on a context.
2. Change of context with workfiles too triggers correct callbacks without issues.

[tokejepsen]

Tested in Nuke 15 successfully.

Could we maybe get some checkboxes for the hosts in the description?

[MustafaJafar]

In Houdini, I faced two things:

1. Publisher tab looks like this: can't replicate it anymore.. maybe it was an issue with my network.
   

2. Sometimes context change works and sometimes it fails. I was able to replicate it in develop branch.. Not, related to this PR.
   

[iLLiCiTiT]

Sometimes context change works and sometimes it fails.

Any traceback? Is the fail related to how the context is changed?

Is it related to this PR? I can't debug this as I don't have Houdini, and I have no direction what could be wrong.

[jakubjezek001]

works in nuke

[iLLiCiTiT]

For anyone reading this PR in future. The issues with publisher did not happen again, probably was caused by lost connection to server, and the context change issue in houdini is not related to this PR.