Reorganize modules to add a fuzz target

...tlin/de/justjanne/libquassel/protocol/io/StringEncoder.kt

.../justjanne/libquassel/protocol/io/useChainedByteBuffer.kt

...de/justjanne/libquassel/protocol/models/BufferActivity.kt

...lin/de/justjanne/libquassel/protocol/models/BufferInfo.kt

...e/justjanne/libquassel/protocol/models/ConnectedClient.kt

.../justjanne/libquassel/protocol/models/HandshakeMessage.kt

...kotlin/de/justjanne/libquassel/protocol/models/Message.kt

...in/de/justjanne/libquassel/protocol/models/QStringList.kt

...ustjanne/libquassel/protocol/models/SignalProxyMessage.kt

.../de/justjanne/libquassel/protocol/models/StatusMessage.kt

...otlin/de/justjanne/libquassel/protocol/models/TimeSpec.kt

...in/de/justjanne/libquassel/protocol/models/alias/Alias.kt

.../de/justjanne/libquassel/protocol/models/alias/Command.kt

...anne/libquassel/protocol/models/dcc/DccIpDetectionMode.kt

...ne/libquassel/protocol/models/dcc/DccPortSelectionMode.kt

...ne/libquassel/protocol/models/dcc/NetworkLayerProtocol.kt

...janne/libquassel/protocol/models/dcc/TransferDirection.kt

...ustjanne/libquassel/protocol/models/dcc/TransferIdList.kt

...ustjanne/libquassel/protocol/models/dcc/TransferStatus.kt

.../justjanne/libquassel/protocol/models/flags/BufferType.kt