[enhancement] Workspaces : user definable orientation

[mmadia]

These are proposed extensions to the Workspaces app to allow a more flexible behavior.

Three command-line or context menu options

--vertical --horizontal --grid X,Y

Vertical and horizontal force a single line of workspaces in the specified orientation. Currently, the only way to get a horizontal line is to use an odd-number of workspaces and there is no way to allow a vertical arrangement.

Grid X,Y will allow the user to specify a non-default grid arrangement. For example, with 16 workspaces, the default grid would display as 4x4. Grid 8,2 would display 2 rows of 8 workspaces.

[axeld]

There can only be a single orientation system wide, but this one can now be changed via the "Screen" preferences application.