Add CUJ tests

Add a cuj_tests binary that runs through a sequence of critical
user journey builds and collects metrics.

Bug: 145688720
Test: cuj_tests
Change-Id: I6bb1a3fc4a458fd8cea7b7c924f565d0cf3e6df3
diff --git a/cuj/Android.bp b/cuj/Android.bp
new file mode 100644
index 0000000..21d667f
--- /dev/null
+++ b/cuj/Android.bp
@@ -0,0 +1,12 @@
+blueprint_go_binary {
+    name: "cuj_tests",
+    deps: [
+        "soong-ui-build",
+        "soong-ui-logger",
+        "soong-ui-terminal",
+        "soong-ui-tracer",
+    ],
+    srcs: [
+        "cuj.go",
+    ],
+}