WIP: Add package README.rst Layout section generator

Add Scripts/Package-README-Layout.bash to ...

Change-Id: I53c24336b8555913a6966b9167280d593933a4cb
WIP: s/Patches/Layout/

for readme in Packages/*/README.rst ; do
  layout="$(echo "$layout" | tr $'\n' $'\r')"
  tr $'\n' $'\r' <"$readme" |
  sed -r '
s|'$'-------\rPatches.*for each patch.\r''|------\rLayout\r------\r|
s|<Patches/([A-Z]+)_([0-9.]+)_([0-9]+)>|<\2/\3>|
' |
  tr $'\r' $'\n' >"$readme.tmp" &&
  mv "$readme.tmp" "$readme"
done

Change-Id: I67fbaaa5ea2cfd48de3424da25a994bcf90aa289
WIP: Update package README.rst Layout sections

Change-Id: Ic5634dbbccbfec27342e601fa5d65699b9c903d7