Updated Policy-Policy relationships as per #10, #11 to be contained as a one-to-many relationship in the Policy table

Signed-off-by: Gideon Farrell <me@gideonfarrell.co.uk>
Fixed #10

Signed-off-by: Gideon Farrell <me@gideonfarrell.co.uk>
Updated to use new policy-policy relationship structure

Signed-off-by: Gideon Farrell <me@gideonfarrell.co.uk>