codeparser: Track bb.utils.contains usage

codeparser: Track bb.utils.contains usage

The bb.utils.contains function usage is getting increasingly used in the metadata
but isn't handled automatically by the python dependency tracking code. This patch
changes that and also adds the "OE" names for the functions.

Whilst there are reasons this is a bad idea, its likely outweighed by the
shear number of these references and the current holes in dependency information
which we're now relying heavily upon.

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>