Changes: Fix the bug that IM crashes when no Chinese engine is installed.
Changes: Fix the bug that IM crashes when no Chinese engine is installed.

RevBy: Jari Alhonen, Anwari Mohammad, Jason Jia.
Details: Do not create CJK logic state machine if CJK engine is not ready.

maliit/plugins,develersrl/maliit-demo-qml,RHawkeyed/plugins,develersrl/maliit-demo-qml,KDE/plasma-maliit-plugins,RHawkeyed/plugins,maliit/plugins,KDE/plasma-maliit-plugins,develersrl/maliit-demo-qml,RHawkeyed/plugins,maliit/plugins,maliit/plugins,RHawkeyed/plugins,KDE/plasma-maliit-plugins,RHawkeyed/plugins,develersrl/maliit-demo-qml,KDE/plasma-maliit-plugins