Added extra function to return a map with error information

src/esqlite3_nif.erl

@@ -22,6 +22,7 @@
 -export([
     open/1,
     close/1,
+    error_info/1,
 
     set_update_hook/2,
 
@@ -89,6 +90,15 @@ open(_Filename) ->
 close(_Db) ->
     erlang:nif_error(nif_library_not_loaded).
 
+%% @doc Get an error messages for the last occurred error.
+%%
+-spec error_info(Connection) -> ErrorMsg 
+    when Connection :: esqlite3(),
+         ErrorMsg :: map().
+error_info(_Db) ->
+    erlang:nif_error(nif_library_not_loaded).
+
+
 %% @doc Set an update hook
 %%
 -spec set_update_hook(Connection, Pid) -> Result