feat(permsets): add maxwaittime attribute to psg awaiter

[packocz]

I tried to make a start at updating the PSG awaiter, which is causing us a lot of headaches. We have large PSGs and update them very frequently. For some reason every now and then some of them just get stuck at "updating" status for several hours and our development pipelines basically stop.

I wonder what would be a better approach:

• extend SfpPackageInstallationOptions and update all install/deploy commands to support a new argument
• use an ENV variable

I've had some issues running these tests, though I originally wrote this in the old repository with lerna and there they ran fine. Nevertheless this is a draft only.

Checklist

All items have to be completed before a PR is merged

• Adhere to Contribution Guidelines
• Updates to Decision Records considered?
• Updates to documentation at flxbl-sfp Guide considered?
• Tested changes?
• Unit Tests new and existing passing locally?

[packocz]

I think I'm now ready with this PR. I added some tests that cover the new behaviour as well.
Still working on being able to use this locally, the nature if the awaiter feature is such that it's quite difficult to test in real life scenarios.