v2.0.0

Rewrite in ReScript

• Rewrite in ReScript
• Upgraded to clean-deep v3.4 (new attribute, naNValue to clean NaN values, default false)
• Change function signature to t-first:

   /* OLD */
   CleanDeep.cleanDeep(jsObject);
   jsObject |> CleanDeep.cleanDeep(~naNValue=true);
   
   /* NEW */
   CleanDeep.cleanDeep(jsObject, ());
   jsObject->CleanDeep.cleanDeep(~naNValue=true, ());