[FEAT] Add support for Component modelCard field

[wiebe-vandendriessche]

Description

The CycloneDX Python library currently does not support the modelCard field on components, as defined in CycloneDX v1.5+.

Expected behavior

• Ability to create and serialize components with type MACHINE_LEARNING_MODEL and the modelCard field populated.

Current behavior

• The modelCard field is unsupported.

Suggested solution

• Extend the Component model to include modelCard.
• Update JSON/XML serialization to support this field.

References

• Parent issue: [FEAT] Add support for Component modelCard and data fields #911

[wiebe-vandendriessche]

I am starting work on this issue. I will prepare a pull request once the work is complete.