Fix liquibase changeset so we can upgrade from H to I

Fix liquibase changeset so we can upgrade from H to I

- Undo (accidental) changes in orginal liquiubase cahnge set (03)
(see commit : https://gerrit.onap.org/r/c/cps/+/119061)
- Add new changeset for required changed related to checksum calcualtion
- There is a incorrect field name (checkstyle instead of checksum) in 03-loadData-schema-set.yaml
 but it seems to be ignored/overruled by the .csv import. If we change it liquibase report an checksum error during upgrade
i.e were are not allowed to touch the file!

Issue-ID: CPS-310

Signed-off-by: ToineSiebelink <toine.siebelink@est.tech>
Change-Id: I00c94e3f1ddab7c9c54aac1294019ec7cd51634f