Handle PostgreSQL binary resources

[jankal]

Description

PostgreSQL (PDO) returns binary values as resources. Converting those to UUIDs is possible with this change.

Motivation and context

Fixes #225 where the uuid_binary type was unusable with PostgreSQL.

How has this been tested?

Added 1 new unit test, cross-checked with MySQL 8 and MariaDB 10.

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

PR checklist

• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING.md document.
• I have added tests to cover my changes.

[thePanz]

Thanks for the PR @jankal , this solves the issue!

Any updates on this PR @ramsey ?

[ramsey]

Thanks for the reminder, @thePanz. I'll try to take a look very soon.