plugin: implement PATH preference

images/icons/insert_drive_file-24dp.svg

jami-qt.pro

resources.qrc

src/clientwrapper.h

src/commoncomponents/PreferenceItemDelegate.qml

src/mainview/components/MediaHandlerPicker.qml

src/mediahandlerlistpreferencemodel.cpp

src/mediahandlerlistpreferencemodel.h

src/pluginadapter.cpp

src/pluginadapter.h

src/pluginlistpreferencemodel.cpp

src/preferenceitemlistmodel.cpp

src/preferenceitemlistmodel.h

src/qmlregister.cpp

src/settingsview/components/PluginItemDelegate.qml

src/settingsview/components/PluginListPreferencesView.qml

src/settingsview/components/PluginListSettingsView.qml

src/settingsview/components/PluginSettingsPage.qml

src/utils.cpp

src/utils.h