Rework CMIS connection config entity

The fields we need on the CMIS connection config entity:

• Browser URL
• Authentication plugin
  • HTTP basic
    • CMIS user
    • CMIS user password
  • Alfresco ticket (sub-module)
    • URL ticket Alfresco
• Repository ID
• Folder ID

For the Alfresco ticket authentication:

1. The form alter on the login form and the added submit function could be moved into the base module
2. This would now trigger an event "cmis_user_login", with data like, username, password and maybe the User object
3. In the sub-module, there could be an event subscriber on this event and looping on all CMIS connections using the Alfresco ticket authentication to store the Alfresco ticket in a key/value store

The authentication plugins will have methods like:

• getGetClient
• getPostClient

To avoid encoding issues.