update PropSpecHelper to use new constructor from toolkit refactors

[adamkorynta]

Problem Description

Fixes #389 .

Solution

Update reflection mechanism to use new constructors.

how you tested the change

Unit tests and by running the webapp in embedded tomcat to check the revised Swagger page.

Where the following done:

• Tests. Check all that apply:
  • Unit tests created or modified that run during ant test.
  • Integration tests created or modified that run during integration testing
    (Formerly called regression tests.)
  • Test procedure descriptions for manual testing
• Was relevant documentation updated?
• Were relevant config element (e.g. XML data) updated as appropriate

[sonarqubecloud]

Quality Gate passed

Issues
7 New issues
0 Accepted issues

Measures
0 Security Hotspots
93.8% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud