Add info.json files for all default layouts (#7425)

* Add info.json files for all default layouts

* Update layouts/default/60_hhkb/layout.json

* Fix layout.json spacing and info.json dimensions

layouts/default/65_ansi/layout.json

@@ -1,4 +1,4 @@
-["","","","","","","","","","","","","",{w:2},"",""],
+[{a:7},"","","","","","","","","","","","","",{w:2},"",""],
 [{w:1.5},"","","","","","","","","","","","","",{w:1.5},"",""],
 [{w:1.75},"","","","","","","","","","","","",{w:2.25},"",""],
 [{w:2.25},"","","","","","","","","","","",{w:1.75},"","",""],