Added development dependencies to package.
Configured new dependencies to test harness.
Initial implementation (with tests) for PointControl.js
Added a UI test to visually confirm point control is working nicely.
Added some basic styles for a point control.
Added icon image for point control.
Updated UI test code to put marker on map now since that functionality is no longer internal to point control.
Removed marker from point control. Added class to map container indicating when control is active.
Added classes to style cursor based on point control.
Modified tests to reflect new functionality.
Merge pull request #1 from emartinez-usgs/EQH-2625

EQH-2625. Merging PointControl.