Get list of all visible scenarios

Get all scenarios for this app that are visible to you.

A scenario object contains the following fields:

• name: The name of the scenario
• owner: The owner of this scenario
• tags: The tags of the scenario
• last_modified: The timestamp when the scenario was last modified
• read_perm: Array of users/groups that have permissions to read the scenario data (groups are indicated by a leading hash #)
• write_perm: Array of users/groups that have permissions to modify the scenario data (groups are indicated by a leading hash #)
• exec_perm: Array of users/groups that have permissions to execute the scenario (groups are indicated by a leading hash #)