added new environment agv-testenv_more_accurate with rfid-map
agv-tenstenv_more_accurate: added new grid map and updated rfid-tags from hexdec to dec
deleted old agv-testenv and replaced it with new and more accurate agv-testenv
Merge pull request #66 from ipa-frm/navigation_maps

added new environment agv-testenv_more_accurate with rfid-map