Ports: Port the Expat XML parser

Author: https://github.com/petelliott
Commit: https://github.com/SerenityOS/serenity/commit/3440292e73
Pull-request: https://github.com/SerenityOS/serenity/pull/17471
Reviewed-by: https://github.com/ADKaster
Reviewed-by: https://github.com/linusg

Ports/AvailablePorts.md

@@ -57,6 +57,7 @@ This list is also available at [ports.serenityos.net](https://ports.serenityos.n
 | [`edid-decode`](edid-decode/)                       | edid-decode                                                     | 20220315.cb74358c2896    | https://git.linuxtv.org/edid-decode                                            |
 | [`emu2`](emu2/)                                     | emu2 DOS emulator                                               | 2021.01                  | https://github.com/dmsc/emu2                                                   |
 | [`epsilon`](epsilon/)                               | graphical calculator simulator                                  | 15.5.0                   | https://github.com/numworks/epsilon                                            |
+| [`expat`](expat/)                                   | Expat XML parser                                                | 2.5.0                    | https://libexpat.github.io/                                                    |
 | [`ffmpeg`](ffmpeg/)                                 | ffmpeg                                                          | 5.0                      | https://ffmpeg.org                                                             |
 | [`fheroes2`](fheroes2/)                             | Free Heroes of Might and Magic II                               | 0.9.13                   | https://github.com/ihhub/fheroes2                                              |
 | [`figlet`](figlet/)                                 | FIGlet                                                          | 2.2.5                    | http://www.figlet.org/                                                         |

Ports/expat/package.sh

@@ -0,0 +1,7 @@
+#!/usr/bin/env -S bash ../.port_include.sh
+port='expat'
+version='2.5.0'
+versionpath='2_5_0'
+useconfigure='true'
+files="https://github.com/libexpat/libexpat/releases/download/R_${versionpath}/expat-${version}.tar.xz expat-${version}.tar.xz ef2420f0232c087801abf705e89ae65f6257df6b7931d37846a193ef2e8cdcbe"
+auth_type='sha256'