Revert "remove dependency to cmd_lib_core"

This reverts commit 68e00a1.

Author: tao-guo

src/lib.rs

@@ -1,21 +1,10 @@
-pub use cmd_lib_core;
-pub use cmd_lib_macros;
+use cmd_lib_core;
+use cmd_lib_macros;
 
-#[macro_export]
-macro_rules! run_cmd {
-    ($($cur:tt)*) => {{
-	use $crate::cmd_lib_core;
-	$crate::cmd_lib_macros::run_cmd!($($cur)*)
-    }};
-}
-
-#[macro_export]
-macro_rules! run_fun {
-    ($($cur:tt)*) => {{
-	use $crate::cmd_lib_core;
-	$crate::cmd_lib_macros::run_fun!($($cur)*)
-    }};
-}
+pub use cmd_lib_macros::{
+    run_cmd,
+    run_fun,
+};
 
 pub use cmd_lib_core::{
     run_cmd,