Create a new REUSE Specification

[carmenbianca]

I've started work on writing a new spec. It's a heavy WIP that will need a lot of tailoring.

Fixes #7

[carmenbianca]

I have finished most of the spec! That was surprisingly easy. I half-suspect that I am missing something glaringly obvious.

There are still some things that need to be improved, as can be seen in the FIXME and TODO tags. I am leaving those things until I get some feedback.

I tried to use must/should/may consistently. It is a little difficult in some spots, so I'll need to do a pass-over of those words when finalising.

[silverhook]

I’ll look into it in the coming days. I kept some notes from the last time. Sorry for joining the partly late, busy times.

[carmenbianca]

Thanks a lot @silverhook !

[silverhook]

Here are a few comments and suggestions from my side.

It took me longer than anticipated, but I hope it’s useful. Happy to provide pull requests, if needed 😃

I’ll tackle the tutorial early next week.

[carmenbianca]

Thank you @silverhook so much for your review.

[goneall]

Just a few comments related to the SPDX spec.

[silverhook]

Before we were running into a “MUST vs SHALL” problem on the same piece of info. I think my suggestion makes it less ambiguous, but I’m very open to better and nicer wording.

[carmenbianca]

I have spoken briefly with @silverhook off-list. We are both struggling with the dimensions of this PR. Almost 150 comments spread over dozens of disparate conversations/threads.

I am going to open separate issues for all identifiable threads I can find (some threads will be combined into the same issue). I am then going to close all conversations in this thread, and move them to the separate issues. I will (if it's not too tedious) copy comments over to the new issues so that the issues are not without context.

When I've done that, I will post a new comment here with links to all newly opened issues. I will @ people involved in the threads.

This will hopefully make it easier to tackle this PR, because GitHub's interface is currently more harmful than it is helpful.

I will begin doing that tomorrow, but I'm writing this now mostly as a to-do list for myself. Figured I might as well publicly share the to-do list so that everyone is up-to-date.

[carmenbianca]

I have closed all conversations that I could find. I have opened the following issues for them:

#24
#25
#26
#27
#28
#29
#30
#31
#32
#33