Add half sheet apk to nearby

Test: start activity show half sheet half sheet can also send signal
back to nearby service
Bug: 202335820

Change-Id: I663ad2ee43a0df35a063472af2835087719828c0
diff --git a/nearby/service/Android.bp b/nearby/service/Android.bp
index bc3f91d..63e2748 100644
--- a/nearby/service/Android.bp
+++ b/nearby/service/Android.bp
@@ -23,6 +23,20 @@
     ],
 }
 
+filegroup {
+    name: "nearby-service-string-res",
+    srcs: [
+        "java/**/Constant.java",
+    ],
+}
+
+java_library {
+    name: "nearby-service-string",
+    srcs: [":nearby-service-string-res"],
+    sdk_version: "module_current",
+}
+
+
 // Main lib for nearby services.
 java_library {
     name: "service-nearby",