feat: add digitalocean provider (#646)

* Added DigitalOcean provider

* Fix PR comment

* Reran the autogen script

* Adding init.py file to digitalocean provider

Co-authored-by: Chris Skaaning <cskaaning@digitalocean.com>

diagrams/digitalocean/__init__.py

@@ -0,0 +1,12 @@
+"""
+DigitalOcean provides a set of services for DigitalOcean provider.
+"""
+
+from diagrams import Node
+
+
+class _DigitalOcean(Node):
+    _provider = "digitalocean"
+    _icon_dir = "resources/digitalocean"
+
+    fontcolor = "#ffffff"