util/coreboot-configurator: Add contrib files

Add contrib files for:
* debian (Tested on Ubuntu 20.04, 21.10, MX Linux 21 and Debian)
* PKGBUILD (Tested on Manjaro 21)
* flatpak (Untested)

Signed-off-by: Sean Rhodes <sean@starlabs.systems>
Change-Id: Ie9f0193ed28c0842661426204fc88ec00091fbae
Reviewed-on: https://review.coreboot.org/c/coreboot/+/59257
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>

util/coreboot-configurator/contrib/README.md

@@ -0,0 +1,36 @@
+# Distribution Packages ![alt text](images/StarLabs_Logo.png "Star Labs Systems")
+The relevant packaging necessary to generate DEB, flatpak and PKG distribution packages is contained here. The generated packages can be used on a distribution such as Fedora, Debian, Ubuntu or Manjaro.
+
+# DEB packages
+To build the DEBs, run these commands (from the root of your git checkout):
+```bash
+cp -r contrib/debian .
+debuild --no-lintian
+```
+To build source files, modify the [change log](debian/changelog) accordingly and run:
+```bash
+cp -r contrib/debian .
+debuild -S
+```
+
+# PKG
+A sample [PKGBUILD](PKGBUILD) is included.
+
+# Flatpak
+To build the Flatpak, run these commands (from the root of your git checkout):
+```bash
+meson build --prefix=/usr
+pushd build
+meson dist
+popd
+cp contrib/flatpak/org.coreboot.coreboot-configurator.json .
+flatpak-builder build-dir org.coreboot.coreboot-configurator.json
+```
+
+## Copying or Reusing
+Included scripts are free software licensed under the terms of the [GNU General Public License, version 3](https://www.gnu.org/licenses/gpl-3.0.txt).
+
+# [© Star Labs® / All Rights Reserved.](https://starlabs.systems)
+Any issues or questions, please contact us at [support@starlabs.systems](mailto:supportstarlabs.systems)
+
+View our full range of Linux laptops at: [https://starlabs.systems](https://starlabs.systems)