Find a date attribute in the builder that has the type attr_type, is of the correct date size, and is not invalid in the
PKCS#11 sense.
If multiple attributes exist for the given attribute type, then the first one is returned.
| this |
the builder |
| attr_type |
the type of attribute to find |
| value |
the location to place the found value |
|
whether a valid date attribute was found |