Add all the Smartspace UI templates' corresponding data classes.

- SmartspaceDefaultUiTemplateData represents the data of a Smartspace
card with the default UI template;
- Other templates' data classes are all subclasses of
SmartspaceDefaultUiTemplateData;
- SmartspaceIcon and SmartspaceTapAction are the newly-added primitives.

More details in go/ss-launcher-templated-ui.

Test: tested locally
Bug:213926964,212650337
CTS-Coverage-Bug:214471292

Change-Id: I056c49e3db7060697be4a3a8f51358802f2610b0