Patch for KNXnet/IP dissector

-removed some proto_tree_add_bits_itemand used bitmaks instead
-fixed KNX Groupaddress decoding
-improved apci decoding
-filternames changed

Change-Id: I2593d54c5e94141445e9e8f32204848e9f48ff6a
Reviewed-on: https://code.wireshark.org/review/4874
Reviewed-by: Anders Broman <a.broman58@gmail.com>