multicat: add a new addon package "multicat" - The multicast swiss knife

Very useful for analyzing multicast traffic directly on the router/
firewall without the need for a large software like vlc or the like.

http://www.videolan.org/projects/multicat.html

Simple and efficient multicast and transport stream manipulation

The multicat package contains a set of tools designed to easily and
efficiently manipulate multicast streams in general, and MPEG-2
Transport Streams (ISO/IEC 13818-1) in particular.

The multicat suite of applications is very lightweight and designed
to operate in tight environments. Memory and CPU usages are kept to
a minimum, and they feature only one thread of execution.

multicat needs bitstream as a build dependency
http://www.videolan.org/developers/bitstream.html

src/patches/bitstream-makefile.patch

@@ -0,0 +1,7 @@
+--- Makefile.org        2013-06-14 12:59:46.000000000 +0200
++++ Makefile    2013-06-14 13:00:01.000000000 +0200
+@@ -1,4 +1,4 @@
+-PREFIX ?= /usr/local
++PREFIX ?= /usr
+ INCLUDE = $(subst //,/,$(DESTDIR)/$(PREFIX)/include/bitstream)
+ VERSION = 1.0

src/patches/multicat-makefile.patch

@@ -0,0 +1,12 @@
+--- Makefile.orig       2013-06-14 12:39:11.000000000 +0200
++++ Makefile    2013-06-14 12:39:20.000000000 +0200
+@@ -13,7 +13,7 @@
+ OBJ_LASTS = lasts.o
+ OBJ_MULTICAT_VALIDATE = multicat_validate.o util.o
+
+-PREFIX ?= /usr/local
++PREFIX ?= /usr
+ BIN = $(DESTDIR)/$(PREFIX)/bin
+ MAN = $(DESTDIR)/$(PREFIX)/share/man/man1
+
+