Add Zhuyin input method for Traditional Chinese

Zhuyin can be enabled with CONFIG+=tcime or CONFIG+=zhuyin qmake flags.
Note that CONFIG+=tcime enables both Cangjie and Zhuyin input methods.
You can also enable the Cangjie input method with CONFIG+=cangjie,
in which case the Zhuyin input method will not be activated, unless
the config contains CONFIG+=zhuyin also.

Change-Id: Iddea01f3e3d7f1dafff80e17da5b7cf89d4cfc55
Task-number: QTRD-3726
Reviewed-by: Rainer Keller <rainer.keller@theqtcompany.com>
Reviewed-by: Liang Qi <liang.qi@theqtcompany.com>