Update Home-monitoring UC

[reinkrul]

The UC description looks out of date, including but not limited to:

• "Permitted means of authentication of healthcare professionals" describes v5 personal authentication means. This should be changed to Nuts RFC021 (Service Access Token) with Employee Credential.
• "homemonitoring-dataholder Policy" describes authorization credentials, which is a Nuts v5 concept. Zorginzage data access policy for home-monitoring is derived from SCP CareTeam.
• "Sequence Diagram" contains a Dutch copy/paste snippet, is incomplete and probably out of date

[jorritspee]

plus:

• it is a spec on top of the generic nuts spec "zorginzage-2022". the spec should be a spec on top of shared care planning.