interpreters/python: Add Python's port to NuttX

This is the NuttX's port of Python (cpython)!

Initial support of Python includes building the Python's static
library and the `python` (Programs/python.c) application. Python's
modules are stored in `pyc` (byte-code file) and loaded as needed
from flash.

interpreters/python/Make.defs

@@ -0,0 +1,30 @@
+############################################################################
+# apps/interpreters/python/Make.defs
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.  The
+# ASF licenses this file to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance with the
+# License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+# License for the specific language governing permissions and limitations
+# under the License.
+#
+############################################################################
+
+ifneq ($(CONFIG_INTERPRETER_CPYTHON),)
+
+CPYTHON_VERSION = $(patsubst "%",%,$(strip $(CONFIG_INTERPRETER_CPYTHON_VERSION)))
+CPYTHON_VERSION_MINOR=$(basename $(CPYTHON_VERSION))
+
+EXTRA_LIBPATHS += -L$(APPDIR)/interpreters/python/install/target
+EXTRA_LIBS += -lpython$(CPYTHON_VERSION_MINOR)
+
+CONFIGURED_APPS += $(APPDIR)/interpreters/python
+endif