Add a Code of Conduct page

[ErnieAtLYD]

This is mandated by CFA and needs to be put in ASAP. Ideally we should have a Spanish translation of this as well for the Espanol page.

[ErnieAtLYD]

Added, but we should still have a Spanish version of this page.

[CristinaSolana]

@ErnieAtLYD Does CfA have a translated version or do we need to translate?

[ErnieAtLYD]

@CristinaSolana CfA I'm assuming does not have a translated version. We would need to translate unless we do not think a Spanish version is necessary and/or appropriate?