Major layout change to the packages directory

Having one monolithic packages directory makes it hard to find things
and is generally overwhelming. This commit splits it into several
logical sections roughly based on function, recipes.txt gives more
information about the classifications used.

The opportunity is also used to switch from "packages" to "recipes"
as used in OpenEmbedded as the term "packages" can be confusing to
people and has many different meanings.

Not all recipes have been classified yet, this is just a first pass
at separating things out. Some packages are moved to meta-extras as
they're no longer actively used or maintained.

Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>

meta/recipes-devtools/gcc/gcc-4.3.3/optional_libstdc.patch

@@ -0,0 +1,23 @@
+gcc-runtime builds libstdc++ separately from gcc-cross-*. Its configure tests using g++ 
+will not run correctly since my default the linker will try and link against libstdc++
+which shouldn't exist yet. We need an option to disable the automatically added -lstdc++
+option whilst leaving -lc, -lgcc and other automatic library dependencies. This patch 
+adds such an option which only disables the -lstdc++ linkage.
+
+A "standard" gcc build uses xgcc and hence avoids this. We should ask upstream how to 
+do this officially, the likely answer is don't build libstdc++ separately.
+
+RP 29/6/10
+
+Index: gcc-4.3.3/gcc/cp/g++spec.c
+===================================================================
+--- gcc-4.3.3.orig/gcc/cp/g++spec.c	2010-06-29 00:06:03.901695025 +0100
++++ gcc-4.3.3/gcc/cp/g++spec.c	2010-06-29 00:06:58.800325439 +0100
+@@ -131,6 +131,7 @@
+       if (argv[i][0] == '-')
+ 	{
+ 	  if (strcmp (argv[i], "-nostdlib") == 0
++	      || strcmp (argv[i], "-nostdlib++") == 0
+ 	      || strcmp (argv[i], "-nodefaultlibs") == 0)
+ 	    {
+ 	      library = -1;