Allows the possibility to update an existing card by modify only some properties

[bengoutaeli]

1. And to take into account the both CardActionEnum during the updating : 1.1. KEEP_EXISTING_PUBLISH_DATE, 1.2. KEEP_EXISTING_ACKS_AND_READS
2. Allow to choose the properties to be modified

[freddidierRTE]

To do that :

• [x] - Implement an http PATCH method to the end point for sending card
• [x] - It shall not be possible to modify processInstanceId and process
• [x] - Add karate test
• [x] - Add in documentation new chapter in https://opfab.github.io/documentation/current/reference_doc/#_sending_cards named "patch a card"