Use the new packaging directory for MacOSX specific files, and provide shell script workaround to make the svg icon reachable.

- Make use of the new packaging directory.
- Set a current directory for subsurface to find the svg icon.  There might be a pretter solution to this.
- Somehow subsurface doesn't behave properly in the Dock.  Running it in the background without Dock integration until we figure out why.

Signed-Off-By: Henrik Brautaset Aronsen <subsurface@henrik.synth.no>

packaging/macosx/Info.plist

@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleIconFile</key>
+	<string>Subsurface</string>
+	<key>CFBundleName</key>
+	<string>Subsurface</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+        <key>CFBundleGetInfoString</key>
+	<string>Rough divelog in C and Gtk</string>
+	<key>CFBundleSignature</key>
+	<string>????</string>
+	<key>CFBundleExecutable</key>
+	<string>subsurface.sh</string>
+	<key>CFBundleIdentifier</key>
+	<string>torvalds.subsurface</string>
+</dict>
+</plist>

packaging/macosx/PkgInfo

@@ -0,0 +1 @@
+APPL????

packaging/macosx/subsurface.sh

@@ -0,0 +1,5 @@
+#!/bin/sh
+
+cd `dirname $0`/../Resources
+../MacOS/subsurface &
+exit 0