chore(build): Update build files [skip ci]
chore(build): Update build files [skip ci]
chore(build): Update build files [skip ci]
chore(build): Update build files [skip ci]
chore(build): Update build files [skip ci]
Added dependencie to directive backImg

This directive puts an image in background, letting the user benefits of properties that applies to background style (position, size, etc..).