Git: Strip development assets from release archive

Signed-off-by: 林博仁(Buo-ren Lin) <Buo.Ren.Lin@gmail.com>

Author: brlin-tw

.gitattributes

@@ -0,0 +1,23 @@
+# Git path attributes configuration file
+#
+# Defining attributes per path
+#
+# Reference:
+#   - Git - gitattributes Documentation
+#     https://git-scm.com/docs/gitattributes
+#
+# This file is based on The Commons Gitattributes Templates
+# https://gitlab.com/brlin/the-commons-gitattributes-templates
+#
+# SPDX-License-Identifier: CC-BY-SA-4.0
+# Copyright © 2020 林博仁(Buo-ren, Lin) <Buo.Ren.Lin@gmail.com>
+
+# Exclude development assets from source archive
+/.* export-ignore
+/continuous-integration/ export-ignore
+
+# Exclude development assets exclusive licenses
+/LICENSES/WTFPL.* export-ignore
+
+# Include dep5 declaration file in release archive
+/.reuse/ -export-ignore