Merge pull request #31 from arduino/upgrade-material-lib

Update 3rd party libraries

Author: Emilio Pavia

.swiftlint.yml

@@ -34,3 +34,6 @@ disabled_rules:
   - cyclomatic_complexity # We'll catch future issues in code review.
   - nesting # We have some cases where deeper nesting is desirable.
   - trailing_whitespace # So annoying...
+  - computed_accessors_order
+  - unneeded_notification_center_removal
+  - mark