Add reachability column to sbom_occurrences table

Background

In order to digest and save to db the reachability feature (in_use) of a customer package , we need to add a smallint column to db.

The optional values are:

0 - unknown (Not in_use)

1 - in_use

This values will be taken from Gemnasium cycloneDX report changes

For more information pls take a look here: #473784 (closed)