Autohide if only overlapped by active windows. Isolated Workspace and or Monitor

[joevnpro]

It is very good if

An option to Autohide if only overlapped by active windows.

=> Only focus on Active windows to hide the dock if it overlaps the dock. Don't care inactive windows.

An option to Isolate Workspace and or Monitor
-> To help focus on the current workspace and monitor.

  Isolate Workspaces: Only show apps from the current workspace.
  Isolate Monitors: Only show apps on the current monitor.

Thank you, author!

Here is an example in Ubuntu dock.

[dalsochio]

I really wanted this too so I implemented it. I made a pull request for this. We will wait for @icedman to review and approve if everything is correct.