BUG: Add missing USTK headers to CMakeLists.txt.

Change-Id: Iffc35329b4b5e7498367ba1e087174e559894038
ENH: Add UltrasoundProbeGeometryCalculator.

Given a B-Mode image that has already been scan converted, this will try to
compute the center of the radius of curvature (the UltrasoundProbeOrigin)
for phased and curvilinear arrays, and the radius for the start of acquisition.

Change-Id: I57593361dd5fd977a3f30c43b157aa0ca65344a6
Merge topic 'UltrasoundProbeOrigin'

fd752de ENH: Add UltrasoundProbeGeometryCalculator.
75368c5 BUG: Add missing USTK headers to CMakeLists.txt.