Added OGC Software Notice to address OGC schemas issue (#306)
Added OGC Software Notice to address OGC schemas issue (#306)

rouault/pycsw,kalxas/pycsw,ricardogsilva/pycsw,mwengren/pycsw,kalxas/pycsw,benhowell/pycsw,bukun/pycsw,ocefpaf/pycsw,rouault/pycsw,ricardogsilva/pycsw,bukun/pycsw,benhowell/pycsw,tomkralidis/pycsw,bukun/pycsw,tomkralidis/pycsw,kevinpdavies/pycsw,ricardogsilva/pycsw,geopython/pycsw,ingenieroariel/pycsw,ingenieroariel/pycsw,kevinpdavies/pycsw,mwengren/pycsw,tomkralidis/pycsw,ocefpaf/pycsw,geopython/pycsw,geopython/pycsw,kalxas/pycsw