Add metadata generator tool for test spec metadata generation.
Bug: 296873595
Test: Manual test (use go test inside tools/metadata/testdata)

Change-Id: I404b57224828149f26bcf4deadb662f513886231
diff --git a/tools/metadata/testdata/generatedOutputFile.txt b/tools/metadata/testdata/generatedOutputFile.txt
new file mode 100644
index 0000000..b0d382f
--- /dev/null
+++ b/tools/metadata/testdata/generatedOutputFile.txt
@@ -0,0 +1,22 @@
+
+.
+java-test-module-name-one
+Android.bp12345
+.
+java-test-module-name-six
+Android.bp12346
+.
+java-test-module-name-six
+Aqwerty.bp12346
+.
+java-test-module-name-six
+Apoiuyt.bp12346
+.
+java-test-module-name-two
+Android.bp12345
+.
+java-test-module-name-two
+Asdfghj.bp12345
+.
+java-test-module-name-two
+Azxcvbn.bp12345
\ No newline at end of file