style: disable flake8 warnings E241, E251, E305, E401

setup.cfg

@@ -1,9 +1,17 @@
 [flake8]
 ignore =
+    # E241: multiple spaces after ':'
+    E241,
+    # E251: unexpected spaces around keyword / parameter equals
+    E251,
     # E261: at least two spaces before inline comment
     E261,
     # E501: line too long
     E501,
     # E302: expected 2 blank lines, found 1
-    E302
+    E302,
+    # E305: expected 2 blank lines after class or function definition, found 1
+    E305,
+    # E401: multiple imports on one line
+    E401
 max-line-length = 120