Update some Wii U development metadata (#13013)

== DETAILS
- add a `WiiU` IntelliSense configuration for vscode
- rewrite the `net_listen.sh` script in python because the
  shell script approach just isn't portable enough and doesn't handle
  things like multiple network adapters gracefully at all.

.vscode/c_cpp_properties.json

@@ -150,6 +150,23 @@
             "cStandard": "c11",
             "cppStandard": "c++11",
             "intelliSenseMode": "gcc-x64"
+        },
+        {
+            "name": "WiiU",
+            "includePath": [
+                "/opt/devkitpro/devkitPPC/powerpc-eabi/include",
+                "/opt/devkitpro/devkitPPC/lib/gcc/powerpc-eabi/6.3.0/include",
+                "/opt/devkitpro/portlibs/ppc/include",
+                "${workspaceFolder}/**"
+            ],
+            "defines": [
+                "WIIU"
+            ],
+            "windowsSdkVersion": "10.0.17763.0",
+            "compilerPath": "/opt/devkitpro/devkitPPC/bin/powerpc-eabi-gcc",
+            "cStandard": "c11",
+            "cppStandard": "c++11",
+            "intelliSenseMode": "gcc-x64"
         }
     ],
     "version": 4

wiiu/net_listen.sh

@@ -1,82 +1,49 @@
-#!/bin/bash
+#!/usr/bin/env python
+# Adapted from the Python UDP broadcast client example by ninedraft: https://github.com/ninedraft/python-udp/
 
-#
-# This script listens for the WiiU network logger and prints the messages to
-# the terminal.
-#
-# If you would like a logfile, pipe this script's output to tee.
+from __future__ import print_function
 
-NETCAT=
+import datetime
+import os
+import signal
+import sys
 
-find_netcat()
-{
-  NETCAT=$(which netcat 2>/dev/null |grep '/')
-  if [ -z "$NETCAT" ]; then
-    NETCAT=$(which nc 2>/dev/null |grep '/')
-    if [ -z "$NETCAT" ]; then
-      echo "Failed to find either 'netcat' or 'nc'. Please install it."
-      exit 1
-    fi
-  fi
-}
+from socket import (
+    socket,
+    AF_INET,
+    SOCK_DGRAM,
+    IPPROTO_UDP,
+    SOL_SOCKET,
+    SO_REUSEPORT,
+    SO_BROADCAST
+)
 
-do_readlink()
-{
-  local exe=$1
-  echo "$(cd $(dirname $exe) && pwd)"
-}
+def get_bind_port():
+  default = 4405
+  candidate = os.getenv('PC_DEVELOPMENT_TCP_PORT', str(default))
+  try:
+    port = int(candidate)
+  except ValueError:
+    port = default
 
-find_netcat
-script_dir=$(do_readlink $0)
+  return port
 
-IP=$(which ip 2>/dev/null | grep '^/')
-IFCONFIG=$(which ifconfig 2>/dev/null | grep '^/')
-TS=$(which ts 2>/dev/null | grep '^/')
+def exit_gracefully(signum, frame):
+    sys.exit(0)
 
-# Using wiiu-devel.properties ensure your make file and this listen script
-# stay in sync with each other.
-#
-# See wiiu-devel.properties.template for instructions.
 
-if [ -e "$script_dir/../wiiu-devel.properties" ]; then
-  . $script_dir/../wiiu-devel.properties
-fi
+def main():
+    signal.signal(signal.SIGINT, exit_gracefully)
+    signal.signal(signal.SIGTERM, exit_gracefully)
 
-if [ -z "$PC_DEVELOPMENT_TCP_PORT" ]; then
-  PC_DEVELOPMENT_TCP_PORT=4405
-fi
+    client = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP)
+    client.setsockopt(SOL_SOCKET, SO_REUSEPORT, 1)
+    client.setsockopt(SOL_SOCKET, SO_BROADCAST, 1)
+    client.bind(("", get_bind_port()) )
+    while True:
+      data, addr = client.recvfrom(1024)
+      print(datetime.datetime.now().isoformat(), data.decode('utf-8').rstrip('\r\n'))
 
-exit_listen_loop=0
 
-getBroadcastIp()
-{
-  if [ ! -z "$IP" ]; then
-    $IP addr show | grep 'inet' |grep 'brd' | awk '{print $4}'
-  elif [ ! -z "$IFCONFIG" ]; then
-    $IFCONFIG | grep 'broadcast' | awk '{print $6}'
-  else
-    echo "255.255.255.255"
-  fi
-}
-
-#
-# This prevents a tug-of-war between bash and netcat as to who gets the
-# CTRL+C code.
-#
-trap 'exit_listen_loop=1' SIGINT
-
-if [ -z "$TS" ]; then
-  echo "[WARN] 'ts' not found. Install the moreutils package to get timestamps."
-fi
-
-broadcast=$(getBroadcastIp)
-echo "Listening for UDP packets on broadcast IP: $broadcast"
-
-while [ $exit_listen_loop -eq 0 ]; do
-  echo ========= `date` =========
-  if [ -z "$TS" ]; then
-    $NETCAT -kluw 0 $broadcast $PC_DEVELOPMENT_TCP_PORT
-  else
-    $NETCAT -kluw 0 $broadcast $PC_DEVELOPMENT_TCP_PORT |ts '[%Y-%m-%d %H:%M:%.S]'
-  fi
-done
+if __name__ == '__main__':
+    main()