Disable supportsPermissions on template specifications

[killanch]

• do not support permissions if it is a template entity
• The following 12 files are impacted

  $ diff --brief -r codegen codegen-base
  codegen/javascript/6/models/NUDomainTemplate.js
  codegen/javascript/6/models/NUGatewayTemplate.js
  codegen/javascript/6/models/NUL2DomainTemplate.js
  codegen/javascript/6/models/NUNSGatewayTemplate.js
  codegen/javascript/6/models/NUNSPortTemplate.js
  codegen/javascript/6/models/NUOverlayMirrorDestinationTemplate.js
  codegen/javascript/6/models/NUPolicyGroupTemplate.js
  codegen/javascript/6/models/NUPortTemplate.js
  codegen/javascript/6/models/NURedirectionTargetTemplate.js
  codegen/javascript/6/models/NUSubnetTemplate.js
  codegen/javascript/6/models/NUVLANTemplate.js
  codegen/javascript/6/models/NUZoneTemplate.js

  The below function will not be generated anymore for the above. This is used to add permission child editor in ModuleContext.