Add fhs to the datamodel library, since it is needed by api-bindings.
Add fhs to the datamodel library, since it is needed by api-bindings.

Signed-off-by: Rok Strniša <ef2e6fb7f9c4d68ca2b20c62606309353789e818@citrix.com>

koushikcgit/xcp-rrdd,djs55/squeezed,djs55/xcp-rrdd,johnelse/xcp-rrdd,djs55/xcp-networkd,koushikcgit/xcp-rrdd,koushikcgit/xcp-networkd,simonjbeaumont/xcp-rrdd,koushikcgit/xcp-rrdd,robhoes/squeezed,sharady/xcp-networkd,simonjbeaumont/xcp-rrdd,sharady/xcp-networkd,koushikcgit/xcp-networkd,djs55/xcp-networkd,djs55/xcp-rrdd,johnelse/xcp-rrdd