Redux: Policy

[andrewbolster]

The is predominantly an import from various policy sources to a more user-friendly context.

No significant (intended) changes to policy.

• policies/social_media.md is new but was asked for repeatedly
• policies/reserves.md is also new but simultaneously is how we've been operating and reporting for 2 years...
• Ditto policies/risk_assessments and policies/late_night.md
• policies/trustee_roles_and_responsibilities.md is an amalgum of fairly standard (and sourced) reference sources

Everything else is a (gently reformatted/corrected) copy from the current farsetlabs.github.io content.

[andrewbolster]

Folding in as has had plenty of time to be structurally argued against if anything was 'wrong', better to fix / build on the mainline

[andrewbolster]

policies/data_protection might be better off in Nexudus