Converted activityLog to bicep

[MariusStorhaug]

Change

Converted activityLog to bicep with minor modifications:

• Name is optional, name is now autogenerated if not provided.
• You can now choose what logs to enable in diagnosticSettings for activityLogs by using a parameter, logsToEnable.

Type of Change

• 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 not work as expected)
• This change requires a documentation update (Wiki)

Checklist

• I'm sure there are no other open Pull Requests for the same update/change
• My corresponding pipelines / checks run clean and green without any errors or warnings
• My code follows the style guidelines of this project
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation (readme)
• I did format my code