Added cangjie and quick keyboard (Chinese Language)

This implemention covers basic usage (single character) and does not have any features like phase suggestions.

The databases using are taking reference from https://github.com/fcitx/fcitx-table-extra/blob/master/tables/cangjie3.txt and https://github.com/fcitx/fcitx-table-extra/blob/master/tables/quick-classic.txt

.gitignore is also updated for easier code management when building with crossbuilder

fixes: #133