Paint Timings WIP

[sudara]

Opening this for feedback. /cc @dikadk @FigBug

Finally got some paint timings in place.

https://github.com/sudara/melatonin_inspector/assets/472/3d11d4bc-e5db-4849-b3f4-4f3959d17289

What works:

• Pulls from component properties named timing1, timing2, timing3
• Calculates and smartly displays up to 3 exclusive and "with children" timings
• Displays orange warning when > 3ms, red warning when > 8ms

What doesn't / Need feedback on

• Ignores stock widgets
• It doesn't solve collecting timings for paint calls which... impossible without some hacking, this is the method I'm using
• We could show avg/max but I'd like to keep things simple on this iteration, maybe just max + 2 last timings?
• I'd like to provide a RAII helper so people could just manually pop in melatonin::populateTiming (this) but haven't done this yet.

For the prototype I'm using a std::deque, storing the last 100 of them and push new timings on the front, but this isn't going to be friendly for others I think. I was interested in creating tooling that would show more of a timeline, but that's going to take more work than stuffing a few things into properties.

Just for clarity is what I currently have in the component I derive everything from.

    // derived classes no longer implement this
    void paint (juce::Graphics& g) final
    {
        juce::int64 startTimeTicks = juce::Time::getHighResolutionTicks();

        // Call derived class paintContent method
        timedPaint (g);

        static auto scalar = 1.0 / static_cast<double> (juce::Time::getHighResolutionTicksPerSecond());
        paintTimings.push_front (static_cast<double> (juce::Time::getHighResolutionTicks() - startTimeTicks) * scalar);

        // limit to 100 entries
        if (paintTimings.size() > 3)
            paintTimings.pop_back();

        setProperty ("timing1", paintTimings[0]);
        setProperty ("timing2", paintTimings[1]);
        setProperty ("timing3", paintTimings[2]);
    }

[sudara]

Also might be cool to be able to click a button to force repaint...

[sudara]

Superseded by #48