This commit adds the status-keycard-qt submodule and updates the build configuration to support it.
In this initial version the `status-keycard-qt` option can be enabled by using the `USE_STATUS_KEYCARD_QT` flag.
- desktop: `USE_STATUS_KEYCARD_QT` will enable/disable the qt implementation. By default the go version is used
- ios: `USE_STATUS_KEYCARD_QT` will enable/disable the qt implementation
- android: the qt implementation is enabled by default
to squash - first commit