Allow creation of "Groups" of cameras

[Olliebrown]

At times, we may want to control a sub-set of cameras. For example, when we are using the turntable and focusing on a single, smaller object with only one corner of the PARSEC rig.

To support this, it would be nice to allow the creation of named groups of cameras.

A User Story for creating a group and adding cameras to it:

• A user wishing to create a group should start with the 'List' view
  • Each camera row in the list should be 'checkable' so that it may appear selected
  • When cameras are selected, the header at the top of the list of cameras would show different options
  • These options would include 'add to group' or 'remove from group'
• After selecting the cameras they want to add from the current server, the user clicks 'add to group'
• A dropdown shows existing groups, as well as the option to create a new group, and the user selects their desired option
• The user moves to the next server and selects more cameras to add to the group

A User Story for Selecting and Using a group:

• A user wishing to use cameras in a group would go to the 'capture' view
  • At the top, a row displays an option to select a group which also includes the option 'All Cameras'
  • By default it is on 'All Cameras' but it may easily be changed to any group desired
• The user selects a particular group from this dropdown
• They proceed as normal for their capture and ONLY the cameras in the indicated group will be affected by other capture steps

A user story for deleting a group:

• A user wishing to delete a group would go to the 'capture' view
  • At the top, the row that displays the option to select a group would also include a button to delete the currently selected group
• The user selects the group they wish to delete and clicks the 'delete group' button
• A confirmation pops up ensuring this was intended and, after the user confirms the action, the group is deleted
• The group selection drop-down returns to the 'all cameras' selection

A user story for exporting and importing groups:

• A user may wish to transfer a group from one computer to another
• They click the gear icon in the upper right and select 'Import/Export Local Data'
• The user follows the instructions and makes sure to check the 'Camera Groups' checkbox to include this data