Contact attempts

All patients should have additional info with list of contact attempts. Every attempt should have:

• type,
• datetime
• person who contacted (when adding it should be the one who adds entry)
• comments

assigned to @valentin.groues

created branch 34-contact-attempts

mentioned in merge request !32 (merged)

mentioned in commit d4bfbce6

closed via merge request !32 (merged)

closed via commit 169fbed5

mentioned in commit 169fbed5