nextpnr: restructure a bit and add pkg images

[se-bi]

Hey, next one, also as discussed in #4.

(builds on #13)

[eine]

LGTM. Do you want to handle doc modifications in this same PR, or will be finish the technical modifications first and we will later document all the changes at once?

[se-bi]

LGTM. Do you want to handle doc modifications in this same PR, or will be finish the technical modifications first and we will later document all the changes at once?

valid point! Though first reaction was kind of :see_no_evil:

After a quick look, seems a lot generated stuff, is it mainly based on the doc/tools.yml?

[eine]

After a quick look, seems a lot generated stuff, is it mainly based on the doc/tools.yml?

Yes, in this case it's editing doc/tools.yml and that will update the table. Then, the graph should be updated. That's trickier because the dot source needs to be edited manually.

Let's merge this as is. In the next PR, please update tools.yml; and don't worry about the graph. I'll see how to handle that.

[se-bi]

what else, than:

 nextpnr:
   url: 'https://hdl.github.io/awesome/items/nextpnr'
+  pkg:
+    - 'nextpnr-ice40'
+    - 'nextpnr-ecp5'
+    - 'nextpnr-generic'
   use:
     - 'nextpnr'
     - 'nextpnr:ice40'
     - 'nextpnr:ecp5'
+    - 'nextpnr:generic'

[eine]

Nothing actually! I believe that's enough for this PR! I was mislead by the next one, which will imply modifying impl. Please, push that here.

[se-bi]

Ok, also done.

...impl for another time.