Issue 53055: Check for multiple values in single value column

[labkey-nicka]

Rationale

This addresses Issue 53055 which updates the processing of values pasted into an editable grid to determine if the underlying column accepts multiple values before processing pasted values.

Related Pull Requests

• Issue 53055: Check for multiple values in single value column #1794
• https://github.com/LabKey/limsModules/pull/1418
• Issue 53055: Check for multiple values in single value column platform#6685
• Issue 53055: Check for multiple values in single value column testAutomation#2456

Changes

• Check if multiple values and the column supports multiple values when processing parsed values
• Update tests to new expectations and add multi-value lookup column coverage

[labkey-alan]

Looks good, as discussed this change is also needed in order to allow us to handle multi-line copy/paste, but we'll tackle that later.