[INTERNAL] Component Model Preload: Add URI parameter for testing
[INTERNAL] Component Model Preload: Add URI parameter for testing

This change add an option to test the model preload feature
without changing the component manifest.
It can be used to verify that the component is still working fine
and to measure performance differences.

See comments in code for usage examples.

Change-Id: Iee003d1bb273d67a9414ee6ba1657a3436eb2362

SAP/openui5,SQCLabs/openui5,cschuff/openui5,cschuff/openui5,nzamani/openui5,nzamani/openui5,olirogers/openui5,cschuff/openui5,SAP/openui5,SQCLabs/openui5,nzamani/openui5,SQCLabs/openui5,SAP/openui5,SAP/openui5,olirogers/openui5,olirogers/openui5