[third_party] Add parameterized as third party importable library

Change-Id: I7759685d8d60098da2337880603b28fab997cec3

parameterized/BUILD.gn

diff --git a/parameterized/BUILD.gn b/parameterized/BUILD.gn
new file mode 100644
index 0000000..472e031
--- /dev/null
+++ b/parameterized/BUILD.gn
@@ -0,0 +1,12 @@
+# Copyright 2021 The Fuchsia Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import("//build/python/python_library.gni")
+
+python_library("parameterized") {
+  sources = [
+    "__init__.py",
+    "parameterized.py"
+  ]
+}

parameterized/README.fuchsia

diff --git a/parameterized/README.fuchsia b/parameterized/README.fuchsia
new file mode 100644
index 0000000..3f6dc2e
--- /dev/null
+++ b/parameterized/README.fuchsia
@@ -0,0 +1,11 @@
+Name: parameterized
+License: BSD
+License File: LICENSE.txt
+Upstream Git: https://github.com/llvm/llvm-project
+Description:
+
+Parameterized testing with any Python test framework
+
+Local Modifications:
+Added README.fuchsia.
+Added BUILD.gn.