#904
- MXKContactManager: List the local contacts with methods (instead of handling only the emails).
- ContactTableViewCell: Highlight the Matrix-enabled contacts in local contacts section.
- Update `NSContactsUsageDescription` to turn on by default the matrix user discovering when the user allows the access to the local contacts.
- Ask to the existing users the permission to upload emails when the contact access is already granted.
- Update matrix ids for all the local contacts in only one request when device contacts are loaded and an identity server is available.
giomfo