Import Python jinja2 for working with templates

This provides a framework for dealing with templates. A bit overkill for
what I need to do, but convenient to have around.

Change-Id: I0554a5df120624f36c536655e0578754273555b9
diff --git a/debian/python_jinja2.BUILD b/debian/python_jinja2.BUILD
new file mode 100644
index 0000000..1adab6a
--- /dev/null
+++ b/debian/python_jinja2.BUILD
@@ -0,0 +1,7 @@
+py_library(
+    name = "python_jinja2",
+    srcs = glob(["src/jinja2/*.py"]),
+    imports = ["src/"],
+    visibility = ["//visibility:public"],
+    deps = ["@python_markupsafe"],
+)