Fix #505 Reorganise existing GfRC

[mpilgrem]

See:

• Make GfRC retargetable #505

This takes the existing content and reorganises it to separate out the Standards of Public Behaviour (which are not specific to the Foundation) from the rest of the content (which puts the Standards in their Foundation context).

The Standards are given an identifiable 'version' (using a bigendian date).

Perhaps the easiest way to review this is to compare side by side:

• the existing published web page: https://haskell.foundation/guidelines-for-respectful-communication/
• with the proposed file, as amended.

[Bodigrim]

@mpilgrem there seems to be a merge conflict, according to GitHub.

[mpilgrem]

@Bodigrim, sorry. Turns out I was editing the wrong branch. Now fixed.

[hasufell]

Does this PR clarify the license?

[mpilgrem]

On intellectual property (IP) rights, no. Given the acknowledgements, it is possible that this is, in part, a derivative work - but I have not performed a comparison or researched the IP rights associated with what is acknowledged. Given the Foundation's stated intent, my personal assumption is the Foundation would seek to be as permissive as it is able to be, however this specific topic has not been discussed by the board of the Foundation while I have been a member. I can't imagine the Foundation seeking to enforce any copyright it possesses in the Standards of Public Behaviour unless the text was somehow being misused to harm the objectives of the Foundation.

[Bodigrim]

I always thought (but have never investigated it properly) that IP for GfRC belongs to GHC Steering Committee, see https://mail.haskell.org/pipermail/ghc-steering-committee/2018-December/000870.html.

[mpilgrem]

On copyright and licensing, I have added something concrete to facilitate discussion. The addition does not conflict with @Bodigrim's understanding, but perhaps the existing acknowledgements are incomplete. EDIT: I've added a commit to add the GHC Steering Committee's GfRC to the Acknowledgements.