esptool: Include as a package, delete submodule

components/esptool_py/esptool/espsecure.py

@@ -0,0 +1,22 @@
+#
+# SPDX-FileCopyrightText: 2022 Espressif Systems (Shanghai) CO LTD
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+import os
+import sys
+
+try:
+    sys.path.remove(os.path.dirname(os.path.realpath(__file__)))  # do not import this script
+except ValueError:
+    pass
+
+try:
+    import espsecure
+except ImportError:
+    raise ModuleNotFoundError('No module named "espsecure" please install espsecure.py by running '
+                              'the install and export scripts.')
+
+if __name__ == '__main__':
+    espsecure._main()  # type: ignore