chore: added a license file
chore: added a license file

Fixes #21

jonmaim/angular-localForage,jlsuarezs/angular-localForage,nishant8BITS/angular-localForage,mathroc/angular-localForage,noKid/angular-localForage,nishant8BITS/angular-localForage,ocombe/angular-localForage,mathroc/angular-localForage,jlsuarezs/angular-localForage,zarko-tg/angular-localForage,ocombe/angular-localForage,jonmaim/angular-localForage,noKid/angular-localForage,zarko-tg/angular-localForage