SmartSpace <-> Underlay communication

Connects SmartSpace data from PCC to underlay, receiving cards of a new
feature type and target id, and translating them into chips that should
be presented in the UI.

Bug: 403422950
Test: atest UnderlayRepositoryTest UnderlayInteractorTest
Test: local w/ cl/752124223 sponge http://sponge2/5f1ed064-958f-461d-bdbf-d17c3c9b7646
Flag: com.android.systemui.enable_underlay
Change-Id: If0f75ef2ebc031217a87d50b0d2074799a40116f