Permissions for @turbot/gcp-functions

Taking a look at permissions and associated grant levels for each permission for Functions:

PermissionGrant LevelHelp
cloudfunctions.functions.callOperator
cloudfunctions.functions.createAdmin
cloudfunctions.functions.deleteAdmin
cloudfunctions.functions.getMetadata
cloudfunctions.functions.listMetadata
cloudfunctions.functions.sourceCodeGetMetadata
cloudfunctions.functions.sourceCodeSetOperator
cloudfunctions.functions.updateAdmin
cloudfunctions.locations.listMetadata
cloudfunctions.operations.getMetadata
cloudfunctions.operations.listMetadata
resourcemanager.projects.getMetadata
serviceusage.quotas.getMetadata
serviceusage.services.getMetadata
serviceusage.services.listMetadata
cloudfunctions.functions.setIamPolicyAdmin