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/elfutils/elfutils-0.148/testsuite-ignore-elflint.diff

@@ -0,0 +1,19 @@
+On many architectures this test fails because binaries/libs produced by
+binutils don't pass elflint. However elfutils shouldn't FTBFS because of this.
+
+So we run the tests on all archs to see what breaks, but if it breaks we ignore
+the result (exitcode 77 means: this test was skipped).
+
+Index: elfutils-0.128/tests/run-elflint-self.sh
+===================================================================
+--- elfutils-0.128.orig/tests/run-elflint-self.sh	2007-07-08 21:46:16.000000000 +0000
++++ elfutils-0.128/tests/run-elflint-self.sh	2007-07-08 21:46:49.000000000 +0000
+@@ -32,7 +32,7 @@
+ #  echo $1
+   if [ -f $1 ]; then
+     testrun ../src/elflint --quiet --gnu-ld $1 ||
+-    { echo "*** failure in $1"; status=1; }
++    { echo "*** failure in $1"; status=77; }
+   fi
+ }
+