Add CODEOWNERS (miekg#1042)

git shows:

 git shortlog -sne | head
  3311	Miek Gieben <[email protected]>
   157	Tom Thorogood <[email protected]>
    39	Alex Sergeyev <[email protected]>
    37	Andrew Tunnell-Jones <[email protected]>
    34	Filippo Valsorda <[email protected]>
    21	Rafael Dantas Justo <[email protected]>
    19	Michael Haro <[email protected]>
    14	Alex Sergeyev <[email protected]>
    13	chantra <[email protected]>
    11	Alex Ciuba <[email protected]>

I took the top 2, but happy to extend this obvs.

Signed-off-by: Miek Gieben <[email protected]>

Author: miekg

CODEOWNERS

@@ -0,0 +1 @@
+* @miekg @tmthrgd