add templates

templates have to exist in templates/ directory and can be chosen via the --template flag.

directory-listing/create-index.py

@@ -10,7 +10,7 @@ def timestamp_to_datetime(timestamp):
 	return datetime.fromtimestamp(timestamp)
 
 def main(inputfolder, outputfolder, template, ignore_files):
-	jinjaenv = jinja2.Environment(autoescape=jinja2.select_autoescape(), loader=jinja2.FileSystemLoader("templates"))
+	jinjaenv = jinja2.Environment(autoescape=jinja2.select_autoescape(), loader=jinja2.FileSystemLoader("/usr/local/share/templates"))
 	jinjaenv.filters["timestamp_to_datetime"] = timestamp_to_datetime
 
 	template = jinjaenv.get_template(f"{template}.html.j2")