Disable function when pinned

Disable function when pinned

The following actions can now be enabled/disabled on demand:

Previous/Next event
Grab and pan navigation
Zoom on selection
Horizontal zoom
Horizontal scroll
Time range selection

Those are disabled when pinned since they either change the visible time range
or the current time stamp selection.

On pin change the selection limit bar to grey.

Row oriented/vertical actions are still available (e.g up/down/home key,
vertical zoom, vertical scrolling).

Change-Id: Ibf941d068fb173818c500506cba43c1a13af90f7
Signed-off-by: Jonathan Rajotte <jonathan.rajotte-julien@efficios.com>