cleanup writeTypes(types) a bit [minor]
add support for the OSC 1.1 spec. required type 'N' == null
TMP mor ecleanup for 2 commits earlier
wide-spread JavaDoc adjustments and fixes [minor]
add @Override annotations to computeByteArray()
mark some members as final
implement lazy-one-time-init of the byte[]-representation of a packet

This was suggested by the isByteArrayComputed member before,
but was actually not implemented.
OSCByteArrayToJavaConverter: better, simpler and overall less special type handling
slightly adjust JavaDoc in OSCPacket [minor]
a first proposal for introduction of the OSC 1.1 required argument type "Impulse"
what to do when trying to parse an unknown argument type? (add an XXX comment for now) [minor]
add benchmark comparing else-if-chain with HashHap lookup speeds