maven: Add .gitignore for bnd-baseline-maven-plugin
maven: Add .gitignore for bnd-baseline-maven-plugin

Signed-off-by: BJ Hargrave <3d26bb3930946e3370762d769a073cece444c2d8@bjhargrave.com>

xtracoder/bnd,mcculls/bnd,magnet/bnd,GEBIT/bnd,lostiniceland/bnd,GEBIT/bnd,magnet/bnd,mcculls/bnd,magnet/bnd,psoreide/bnd,lostiniceland/bnd,psoreide/bnd,psoreide/bnd,joansmith/bnd,xtracoder/bnd,mcculls/bnd,joansmith/bnd,lostiniceland/bnd