Autofill ClientPatientID field in Sample Add form when Patient defined

[xispa]

Description of the issue/feature this PR addresses

Requires: senaite/senaite.core#1424

Fill the ClientPatientID field (from "Add Sample" form) when the user clicks the button Add Sample from inside Patient context.

Current behavior before PR

Although other fields are automatically filled (e.g. Patient or Clinical Case), field ClientPatientID remains empty.

Desired behavior after PR is merged

Field ClientPatientID in "Add Sample" form is filled automatically after "Add sample" button is clicked from inside Patient context

--
I confirm I have tested this PR thoroughly and coded it according to PEP8
and Plone's Python styleguide standards.

[Espurna]

Creating a Sample from a Patient View, fills the "Client Patient ID" with the Patient's name instead of the correct "Client Patient ID" value.

[xispa]

Creating a Sample from a Patient View, fills the "Client Patient ID" with the Patient's name instead of the correct "Client Patient ID" value.

This is covered in senaite/senaite.core#1424