Variable groups
- CreateVariableGroup - Create a variable group
- UpdateVariableGroup - Update a variable group
- DeleteVariableGroup - Delete variable group
- GetVariableGroup - Query the details of a variable group
- GetAppVariableGroups - Get details of variable groups for an application
- GetAppVariableGroupsRevision - Get variable group revision
- GetEnvVariableGroups - Find details of variable groups attached to an environment