added new Texas BGA package for forthcoming LM74 symbol
datasheets: 1 and 2
$ python ../kicad-library-utils/klc-check/check_footprint.py -vv Package_BGA.pretty/Texas_DSBGA-5_1.5855x1.6365mm_Layout3x2_P0.5mm.kicad_mod Checking footprint 'Texas_DSBGA-5_1.5855x1.6365mm_Layout3x2_P0.5mm' - No errors