aQute.lib.filter: Correctly handle presence (=*) operator in filters
aQute.lib.filter: Correctly handle presence (=*) operator in filters

Previously the code was doing a substring match against * which failed
for attributes which were not of type String like Version.

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

magnet/bnd,magnet/bnd,mcculls/bnd,lostiniceland/bnd,mcculls/bnd,lostiniceland/bnd,psoreide/bnd,psoreide/bnd,psoreide/bnd,magnet/bnd,mcculls/bnd,lostiniceland/bnd