Built-in, one-click 3DS profiling data in viewer or scene

Visualize the data from QT3DS-324. There are two ideas for this atm:

• either do it with widgets in q3dsviewer or qt3dsexplorer. The downside is that this won't work on embedded, unless integrated with remote viewing somehow.

• more compelling: do it completely in-scene, using imgui and its charting/plotting facilities that are perfect for this. https://github.com/alpqr/imgui-qt3d exists for a reason

Here's a proof concept screenshot. This works as-is on mobile and embedded as well.