Override dependencies with different name and pin versions

The name of the libs and python packages are different, Odoo expects
the inner python package in the manifest, but setuptools cannot find the
libs in pypi, overrides them with the libs names.

setup/attachment_swift/setup.py

@@ -2,5 +2,13 @@ import setuptools
 
 setuptools.setup(
     setup_requires=['setuptools-odoo'],
-    odoo_addon=True,
+    odoo_addon={
+        'external_dependencies_override': {
+            'python': {
+                'swiftclient': 'python-swiftclient>=3.7.0',
+                'keystoneclient': 'python-keystoneclient>=3.19.0',
+                'keystoneauth1': 'keystoneauth1>=3.14.0',
+            },
+        },
+    }
 )