Adds documentation about the behavior of a nil priority list

Moves layer types to table

Fix binding handling when binding root doesn't exist

Deprecate non-specification field

Extract out symlink sorting logic

expose dependency mapping error to caller

paketo-buildpacksgh-220

Nest source metadata in BOM

Signed-off-by: Forest Eckhardt <[email protected]>

Adds StripComponents to vacation.ZipArchive

make linter happy

vacation godoc updates