Implement Channel Creation UI and SASL upgrade UI

app/build.gradle.kts

app/src/debug/res/values/strings_constants.xml

.../quasseldroid/ui/chat/add/create/ChannelCreateFragment.kt

...kuschku/quasseldroid/ui/chat/add/create/NetworkAdapter.kt

...de/kuschku/quasseldroid/ui/chat/add/create/NetworkItem.kt

.../quasseldroid/ui/chat/buffers/BufferViewConfigFragment.kt

...asseldroid/ui/coresettings/network/NetworkBaseFragment.kt

...va/de/kuschku/quasseldroid/util/ui/view/InlineSnackBar.kt

app/src/main/res/layout/add_create.xml

app/src/main/res/layout/chat_chatlist.xml

app/src/main/res/layout/preferences_about_header.xml

app/src/main/res/layout/settings_network.xml

app/src/main/res/layout/widget_inline_snackbar.xml

app/src/main/res/values-fr-rCA/strings.xml

app/src/main/res/values-nl/strings.xml

app/src/main/res/values-nl/strings_info.xml

app/src/main/res/values-nl/strings_preferences.xml

app/src/main/res/values/strings_constants.xml

app/src/main/res/values/strings_settings.xml

app/src/main/res/values/styles_widgets.xml