Expose profile_file in render settings

**Describe the feature you'd like**
It would be handy to be able to set the profile file from within Solaris

**Describe the solution you'd like**
`ASTR(profile_file)` already exists, it just needs exposing like `ASTR2(profile_file, "profile:file")` so it shows up in the render settings

**Describe alternatives you've considered**
A clear and concise description of any alternative solutions or features you've considered.

**Additional context**
Add any other context or screenshots about the feature request here.

Start by locating the existing ASTR(profile_file) entry and the ASTR2(profile_file, "profile:file") pattern in the render settings integration. The work is done when profile_file can be set from Solaris and appears in the render settings.

Written by the indexing model from the issue text.