Ports: Add npiet

Add interpreter for piet programming language
https://www.bertnase.de/npiet/
https://www.dangermouse.net/esoteric/piet.html

Ports/AvailablePorts.md

@@ -125,6 +125,7 @@ Please make sure to keep this list up to date when adding and updating ports. :^
 | [`nethack`](nethack/)                  | nethack                                                         | 3.6.6                    | https://www.nethack.org/                                                       |
 | [`ninja`](ninja/)                      | Ninja                                                           | 1.8.2                    | https://ninja-build.org/                                                       |
 | [`nippon`](nippon/)                    | Nippon Safes Inc.                                               | 1.0                      | https://www.scummvm.org/games/#games-nippon                                    |
+| [`npiet`](npiet/)                      | Piet language interpreter                                       | 1.3f                     | https://www.bertnase.de/npiet/                                                 |
 | [`npth`](npth/)                        | New GNU Portable Threads Library                                | 1.6                      | https://gnupg.org/software/npth/index.html                                     |
 | [`ntbtls`](ntbtls/)                    | The Not Too Bad TLS Library                                     | 0.2.0                    | https://gnupg.org/software/ntbtls/index.html                                   |
 | [`nyancat`](nyancat/)                  | Nyancat                                                         |                          | https://github.com/klange/nyancat                                              |

Ports/npiet/package.sh

@@ -0,0 +1,8 @@
+#!/usr/bin/env -S bash ../.port_include.sh
+port=npiet
+useconfigure=true
+version=1.3f
+depends=("libgd" "libpng")
+configopts=()
+files="https://www.bertnase.de/npiet/npiet-${version}.tar.gz npiet-${version}.tar.gz 2ded856062abd73599e85e1e768ce6bc60ba2db22dc7d6a9b62763dca04b855a"
+auth_type=sha256

Ports/npiet/patches/npiet.patch

@@ -0,0 +1,24 @@
+diff -ruN npiet-1.3f/Makefile.in npiet-1.3f.patched/Makefile.in
+--- npiet-1.3f/Makefile.in	2014-12-04 15:59:51.000000000 -0500
++++ npiet-1.3f.patched/Makefile.in	2022-01-05 13:40:37.959967837 -0500
+@@ -67,7 +67,7 @@
+ ##
+ ## How to build the target:
+ ##
+-all:		npiet npiet-foogol html
++all:		npiet npiet-foogol
+ 
+ npiet:		npiet.o
+ 	$(CC) $(LDFLAGS) $(PROF) -o npiet npiet.o $(LIBS)
+diff -ruN npiet-1.3f/npiet-foogol.c npiet-1.3f.patched/npiet-foogol.c
+--- npiet-1.3f/npiet-foogol.c	2020-08-09 09:18:46.000000000 -0400
++++ npiet-1.3f.patched/npiet-foogol.c	2022-01-05 13:39:49.922931168 -0500
+@@ -108,7 +108,7 @@
+ #include <stdio.h>
+ #include <stdlib.h>
+ #include <string.h>
+-#include <malloc.h>
++// #include <malloc.h>
+ #include <limits.h>
+ #include <time.h>
+