octoprint.setuptools => octoprint_setuptools (own package)

Otherwise we get import issues during build since the octoprint module depends on the dependencies already being present what they obviously can't be at the beginning of setup.

setup.py

@@ -44,14 +44,14 @@ plugin_additional_data = []
 from setuptools import setup
 
 try:
-	import octoprint.setuptools
+	import octoprint_setuptools
 except:
 	print("Could not import OctoPrint's setuptools, are you sure you are running that under "
 	      "the same python installation that OctoPrint is installed under?")
 	import sys
 	sys.exit(-1)
 
-setup(**octoprint.setuptools.create_plugin_setup_parameters(
+setup(**octoprint_setuptools.create_plugin_setup_parameters(
 	identifier=plugin_identifier,
 	name=plugin_name,
 	version=plugin_version,