lisa.utils: Replace serialized_whitelist/blacklist/placeholders by ATTRIBUTES_SERIALIZATION

BREAKING CHANGE

Remove:
    * Serializable.serialized_whitelist
    * Serializable.serialized_blacklist
    * Serializable.serialized_placeholders

And replace them by:
    * Serializable.ATTRIBUTES_SERIALIZATION['allowed']
    * Serializable.ATTRIBUTES_SERIALIZATION['ignored']
    * Serializable.ATTRIBUTES_SERIALIZATION['placeholders']