Moving some files from support into packaging.

diff --git a/support/cull_options b/packaging/cull_options
similarity index 100%
rename from support/cull_options
rename to packaging/cull_options

diff --git a/support/extern-squish b/packaging/extern-squish
similarity index 100%
rename from support/extern-squish
rename to packaging/extern-squish

diff --git a/support/patch-update b/packaging/patch-update
similarity index 100%
rename from support/patch-update
rename to packaging/patch-update