Usage:
ge_cachbuild.pl -lat [pos] -lon [pos] -range [meters] -hkm [km] -vkm [km]  -sleep [sec]
  -lat   (Northwest corner in decimal degrees) ex: 42.832778
  -lon   (Northwest in decimal degrees) ex: -72.983889
  -range (Range in meters) ex: 600
  -hkm   (Int number of kilometers to scan West to East) ex: 15
  -vkm   (Int number of kilometers to scan North to South) ex: 10
  -sleep (Int number of seconds to sleep before moving), default 3