Keyboard events and ARIA markup added to speed control
Few syntax changes
Fixed tests
Added menuitem key ENTER/ESCAPE specs
Addressed PR comments
Modified ENTER/SPACE keypress behavior on speedControl. Reverted to not using toBeFocused in tests
Modified TAB keypress behavior on speedControl and added related tests
Replaced anonymous event handlers by named functions. Got rid of BLD-804 bug. Changed behavior of SPACE keydown on speed entries.
Addressed PR comments. Menu stays open on mouseleave when a speed entry has focus. In that case, the menu can be closed by clicking anywhere outside of it