UefiPayloadPkg: Provide a wrapper for UniversalPayloadBuild.py

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=4071

Provide a wrapper to wrap UniversalPayloadBuild.py

Reviewed-by: Guo Dong <guo.dong@intel.com>
Reviewed-by: James Lu <james.lu@intel.com>
Signed-off-by: VictorX Hsu <victorx.hsu@intel.com>

UefiPayloadPkg/UniversalPayloadBuild.sh

@@ -0,0 +1,17 @@
+#!/usr/bin/env bash
+#
+# Copyright (c) 2022, Intel Corporation. All rights reserved.<BR>
+#
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+
+if command -v ${PYTHON_COMMAND} >/dev/null 2>&1; then
+    echo python_exe=${PYTHON_COMMAND}
+fi
+
+# Get file path of UniversalPayloadBuild.sh
+uplbld_filepath=${BASH_SOURCE:-$0}
+# Remove ".sh" extension
+uplbld_filepath_noext=${uplbld_filepath%.*}
+# execute UniversalPayloadBuild.py to build UefiPayloadPkg
+exec "${python_exe:-python}" "$uplbld_filepath_noext.py" "$@"