Ports: Add a kakoune port

Ports/kakoune/patches/0001-Use-proc-self-exe-on-SerenityOS.patch

@@ -0,0 +1,25 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: demostanis <demostanis@protonmail.com>
+Date: Sat, 10 Sep 2022 20:19:23 +0200
+Subject: [PATCH] Use /proc/self/exe on SerenityOS
+
+---
+ src/file.cc | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/file.cc b/src/file.cc
+index d38c956..9c74364 100644
+--- a/src/file.cc
++++ b/src/file.cc
+@@ -603,7 +603,7 @@ FsStatus get_fs_status(StringView filename)
+ String get_kak_binary_path()
+ {
+     char buffer[2048];
+-#if defined(__linux__) or defined(__CYGWIN__) or defined(__gnu_hurd__)
++#if defined(__linux__) or defined(__CYGWIN__) or defined(__gnu_hurd__) or defined(__serenity__)
+     ssize_t res = readlink("/proc/self/exe", buffer, 2048);
+     kak_assert(res != -1);
+     buffer[res] = '\0';
+-- 
+2.37.3
+