add attrs for -use_macro

[slepher]

while import attributes is imported to macro extra argument Attributes is added to macro function while called. it includes all attributes of module mentioned in proplist key attrs

special attrs:

module: module use_macro

line: line where macro used

-module(a).
-behaviour(gen_server).
-use_macro({macro_a, macro/2, [{attrs, [module, line, behaviour]}]}).

hello() ->
  macro_a:macro(world).

-module(macro_a).
-export([macro/2]).

macro(Ast, #{module => Module, line => Line, behaviour => Behaviours} = Attributes) ->
   io:format("module is ~p, behaviour is ~p", [Module, Behaviours]),
   Ast.

[slepher]

done