Verification_Engine - Report Message null checks added

[michal-pekacki]

NOTE: Depends on

Issues addressed by this PR

Closes #3432

Added null checks to ReportMessage public method.

Test files

Changelog

Additional comments

[pawelbaran]

The changes make sense, happy to approve

[pawelbaran]

@BHoMBot check required

[bhombot-ci]

@pawelbaran to confirm, the following actions are now queued:

• check code-compliance
• check documentation-compliance
• check project-compliance
• check core
• check null-handling
• check serialisation
• check versioning
• check installer

[michal-pekacki]

@BHoMBot check copyright-compliance
@BHoMBot check dataset-compliance
@BHoMBot check unit-tests
@BHoMBot check ready-to-merge

[bhombot-ci]

@michal-pekacki to confirm, the following actions are now queued:

• check copyright-compliance
• check dataset-compliance
• check unit-tests
• check ready-to-merge