libs: Add warnings library.

Signed-off-by: lbuque <[email protected]>

Author: lbuque

m5stack/libs/manifest.py

@@ -27,3 +27,4 @@
 module("m5camera.py")
 module("pid.py")
 include("iot_devices/manifest.py")
+module("warnings.py")

m5stack/libs/warnings.py

@@ -0,0 +1,7 @@
+# SPDX-FileCopyrightText: Copyright (c) 2013-2014 micropython-lib contributors
+#
+# SPDX-License-Identifier: MIT
+
+
+def warn(msg, cat=None, stacklevel=1):
+    print("%s: %s" % ("Warning" if cat is None else cat.__name__, msg))