Add draft FOSS manifesto
This is a draft to work on a FOSS manifesto for an additional set of rules for the association day to day decision making.
Feneas has always been a "FOSS first" association, but this was not written down anywhere, causing confusion among people outside of the association.
Review welcome from any members. This manifesto will not become official until approved by an annual general meeting. The next meeting is sometime around May.
Closes #46 (closed)