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/guilt/files/improve_auto_header_gen.patch

@@ -0,0 +1,69 @@
+guilt: improve the generation of an automatic header
+
+Patches that do not have a proper header are encountered when generating
+a tree. This improves the detection of these patches and generates a sane
+header so the eventual commit will be coherent
+
+Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
+
+---
+
+ guilt |   24 ++++++++++++++++++------
+ 1 file changed, 18 insertions(+), 6 deletions(-)
+
+--- a/guilt
++++ b/guilt
+@@ -591,7 +591,12 @@ commit()
+ 		fi
+ 
+ 		# last try: make a default commit message if patch doesn't contain one
+-		[ ! -s "$TMP_MSG" ] && echo "auto_msg: patch $pname" > "$TMP_MSG"
++		if [ ! -s "$TMP_MSG" ]; then
++		    echo "auto_msg: importing `basename $pname`" > "$TMP_MSG"
++		    echo "" >> "$TMP_MSG"
++		    echo "This is an automatic import of patch $pname, no headers were" >> "$TMP_MSG"
++		    echo "detected and a default message was constructed" >>  "$TMP_MSG"
++		fi
+ 
+ 
+ 		if [ "$header_type" = "guilt" ]; then
+@@ -599,12 +604,14 @@ commit()
+   		    # extract a From line from the patch header, and set
+ 	            # GIT_AUTHOR_{NAME,EMAIL}
+ 		    author_str=`sed -n -e '/^From:/ { s/^From: //; p; q }; /^(diff |---)/ q' "$p"`
+-		    if [ ! -z "$author_str" ]; then
+-			GIT_AUTHOR_NAME=`echo $author_str | sed -e 's/ *<.*$//'`
+-			export GIT_AUTHOR_NAME="${GIT_AUTHOR_NAME:-" "}"
+-                        export GIT_AUTHOR_EMAIL="`echo $author_str | sed -e 's/[^<]*//'`"
++		    if [ -z "$author_str" ]; then
++			author_str="auto commit <unknown@unknown>"
+ 		    fi
+ 
++		    GIT_AUTHOR_NAME=`echo $author_str | sed -e 's/ *<.*$//'`
++		    export GIT_AUTHOR_NAME="${GIT_AUTHOR_NAME:-" "}"
++                    export GIT_AUTHOR_EMAIL="`echo $author_str | sed -e 's/[^<]*//'`"
++
+ 
+ 		    # check in the patch for a subject
+ 		    SUBJECT="$(sed -n '/^Subject/ s/Subject: //p' "$p")"
+@@ -615,6 +622,11 @@ commit()
+ 			if [ ${#SUBJECT} -gt 60 ]; then
+ 			    SUBJECT=${SUBJECT: -60}
+ 			fi
++
++			# remove the line from the tmp msg
++			mv "$TMP_MSG" "$TMP_MSG.work"
++			cat "$TMP_MSG.work" | grep -v -E ".*$SUBJECT.*" > "$TMP_MSG"
++			rm "$TMP_MSG.work"
+ 		    fi
+ 
+ 		    if [ -z "$SUBJECT" ]; then
+@@ -629,7 +641,7 @@ commit()
+ 
+ 		    SUBJECT=`echo $SUBJECT | sed s'%^ *%%'`
+ 
+-		    if [ ! -z "$SUBJECT" ]; then
++		    if [ -n "$SUBJECT" ]; then
+ 			echo "$SUBJECT" >> $TMP_MSG.subject
+ 			echo "" >> $TMP_MSG.subject
+ 			cat "$TMP_MSG" >> $TMP_MSG.subject