Make LicenseChecker private in LicenseChecker.txt #15271
Description
Resolves #15270
This PR changes LicenseChecker class from public to private in LicenseChecker.txt. This allows obfuscation tool to obfuscate LicenseChecker class correctly.
Checklist
- I fully tested it as developer / designer and created unit / integration tests
- I documented it (or no need to document or I will create a separate documentation issue)
- I've assigned reviewer, related labels and set a milestone for this PR