[MIG] mgmtsystem_audit

[max3903]

Fixes #143 conflicts.

[max3903]

@naousse Few comments:

• Separate the verification line class in its own file. One class per file.
• If we delete the audit, we want to remove the verification lines, but keep the procedures. Not sure the ondelete are correct.
• Audits menu items should be below Nonconformities

In the Verification List report (See attached):

• Confidentially --> Confidentiality
• Date value is not aligned with the reference and confidentiality ones
• Columns content is shifted to the right. Comments column should be empty.

In the demo data:

• Convert the Strong points and To improve points values into HTML

[max3903]

👍

[dreispt]

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