Add example project for building an IPak with corresponding ff

docs/example/IPakZone/build.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+# You can now either build the fastfile by building the project itself
+Linker IPakZone
+
+# ...or by building both targets separately
+Linker "IPakZone/IPakZone_ff" "IPakZone/IPakZone_ipak"