Reorganize modules to add a fuzz target

.../justjanne/libquassel/client/io/WritableWrappedChannel.kt

...janne/libquassel/client/syncables/ClientBacklogManager.kt

...tjanne/libquassel/client/syncables/ClientIrcListHelper.kt

...ain/kotlin/de/justjanne/libquassel/client/util/TlsInfo.kt

.../kotlin/de/justjanne/libquassel/client/util/X509Helper.kt

...est/kotlin/de/justjanne/libquassel/client/EndToEndTest.kt

...tjanne/libquassel/client/testutil/QuasselCoreContainer.kt

...tjanne/libquassel/client/testutil/TestX509TrustManager.kt

client/src/test/resources/quasseltest.crt

client/src/test/resources/quasseltest.key

fuzz/build.gradle.kts

...otlin/de/justjanne/libquassel/fuzz/HandshakeFuzzTarget.kt

...lin/de/justjanne/libquassel/fuzz/SignalProxyFuzzTarget.kt

generator/build.gradle.kts

...ain/kotlin/de/justjanne/libquassel/generator/Constants.kt

...lin/de/justjanne/libquassel/generator/InvokerProcessor.kt

...ustjanne/libquassel/generator/InvokerProcessorProvider.kt

...ustjanne/libquassel/generator/InvokerRegistryGenerator.kt

.../libquassel/generator/annotation/RpcFunctionAnnotation.kt

...ne/libquassel/generator/annotation/RpcObjectAnnotation.kt