ContextualSearch API initial implementation

Test: CTS
Bug: 309689654
Change-Id: I0b820180eca2dfe32287132b941a5719ad7e26ca
diff --git a/services/Android.bp b/services/Android.bp
index 8709692..98a7979 100644
--- a/services/Android.bp
+++ b/services/Android.bp
@@ -119,6 +119,7 @@
         ":services.companion-sources",
         ":services.contentcapture-sources",
         ":services.contentsuggestions-sources",
+        ":services.contextualsearch-sources",
         ":services.coverage-sources",
         ":services.credentials-sources",
         ":services.devicepolicy-sources",
@@ -208,6 +209,7 @@
         "services.companion",
         "services.contentcapture",
         "services.contentsuggestions",
+        "services.contextualsearch",
         "services.coverage",
         "services.credentials",
         "services.devicepolicy",