Add android api database builders and initial tests for generated jar

Bug: 138781768
Bug: 190368382
Bug: 190187790
Bug: 188388130
Change-Id: I1d88285cb25b3515fcc059c7ec5ed21be4d9014a
diff --git a/build.gradle b/build.gradle
index cc51ea6..9032bc4 100644
--- a/build.gradle
+++ b/build.gradle
@@ -315,6 +315,7 @@
                 "android_jar/lib-v29",
                 "android_jar/lib-v30",
                 "android_jar/lib-v31",
+                "android_jar/api-versions",
                 "api-outlining/simple-app-dump",
                 "core-lambda-stubs",
                 "dart-sdk",