Add LICENSE file.
Add LICENSE file.

LICENSE file in the top directory is required according to
http://www.apache.org/dev/apply-license.html

wadtech/drive,shaunstanislaus/drive,gdm85/drive,wadtech/drive,gdm85/drive,gccpacman/drive,js-ojus/drive,sjfloat/drive,orinocoz/drive,Dedsec01/drive,hidehide55/drive,fgrosse/drive,PseudoAj/drive,cacack/drive,Qbitz/drive,gccpacman/drive,cacack/drive,sselph/drive,stffrdhrn/drive,aeppert/drive,shaunstanislaus/drive,mralexgray/drive,fgrosse/drive,PseudoAj/drive,OldDragon2A/drive,brianjking/drive,Qbitz/drive,FreedomBen/drive,brianjking/drive,aeppert/drive,miguelinux/drive,Laeeth/drive,hatchling/drive,hatchling/drive,mralexgray/drive,pefoley2/drive,hidehide55/drive,Laeeth/drive,stffrdhrn/drive,orinocoz/drive,miguelinux/drive,odeke-em/drive,dzhsurf/drive,sjfloat/drive,sselph/drive,OldDragon2A/drive,js-ojus/drive,dzhsurf/drive,Dedsec01/drive,odeke-em/drive,tom-saunders/drive,tom-saunders/drive,pefoley2/drive,FreedomBen/drive