Support setting priorityClassName in Profiles

[welteki]

Description

• Update types, clientset and CRDs to support setting priorityClassName for functions using Profiles.
• Migrate to use kube_codegen.sh to generate client.

Why is this needed?

• I have raised an issue to propose this change (required)

Support configuring the priority for scheduling function pods.
This feature was requested by a customer.

Who is this for?

What company is this for? Are you listed in the ADOPTERS.md file?

How Has This Been Tested?

New types where used in the pro fork of faas-netes where the support for Profiles is implemented.

Changes for the OpenFaaS chart were verified while testing this feature with faas-netes pro.

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I've read the CONTRIBUTION guide
• I have signed-off my commits with git commit -s
• I have added tests to cover my changes.
• All new and existing tests passed.

[alexellis]

Approved