Support for sa.BINARY and sa.BLOB types

[makhalin]

Previously, using sa.BINARY, sa.LargeBinary, or sa.BLOB resulted in an AttributeError because ydb_dbapi lacks the Binary attribute required by SQLAlchemy's default bind_processor for these types.

This change introduces Binary, a custom type that inherits from sa.LargeBinary but overrides bind_processor to bypass the call to dbapi.Binary and pass the raw bytes directly. This type is mapped to sa.BINARY, sa.LargeBinary, and sa.BLOB in the dialect's colspecs.