2003-11-07 Sebastien Pouliot * AlgorithmIdentifier.cs: New. Class to encapsulate PKCS7 AlgorithmIdentifier. * CryptographicAttribute.cs: Basic class for attributes. * KeyAgreeKeyChoice.cs: New. Enumeration for key agreement. * Pkcs9Attribute.cs: New. Base class for Pkcs#9 attributes. * Pkcs9DocumentDescription.cs: New. Pkcs#9 DocumentDescription attribute. * Pkcs9DocumentName.cs: New. Pkcs#9 DocumentName attribute. * Pkcs9SigningTime.cs: New. Pkcs#9 SigningTime attribute. * RecipientInfoType.cs: New. Enumeration for RecipientInfo. * RecipientSubType.cs: New. Enumeration for RecipientInfo. * SubjectIdentifierOrKeyType.cs: New. Enumeration for SubjectIdentifier. * SubjectIdentifierType.cs: New. Enumeration for SubjectIdentifier.