add ai_proplists and bump version to 0.3.5

Author: DavidAlphaFox

Makefile

@@ -1,6 +1,6 @@
 PROJECT = ailib
 PROJECT_DESCRIPTION = Base lib for products from ailink.io
-PROJECT_VERSION = 0.3.4
+PROJECT_VERSION = 0.3.5
 
 include erlang.mk
 

src/stdlib/ai_proplists.erl

@@ -0,0 +1,9 @@
+-module(ai_proplists).
+-export([merge/2]).
+
+merge(P1,[]) ->P1;
+merge(P1,[{K,_} = H| T]) ->
+    case proplists:is_defined(K,P1) of
+        true -> merge(P1,T);
+        false -> merge([H|P1],T)
+    end.