Added an overload to sort a ValueTree using a lambda

[ffAudio]

This Pull Request adds an function overload to ValueTree sort, which takes a lambda, so that sorting of ValueTree children can be done in one line instead of creating an ElementComparator struct.

Unit Tests for numbers and strings are included.

[reFX-Mike]

Very nice. Perhaps something similar can be done for StringArray, ListBoxModel, etc., wherever a custom sort might be needed.

[ffAudio]

Very nice. Perhaps something similar can be done for StringArray, ListBoxModel, etc., wherever a custom sort might be needed.

Indeed, this would be possible. Good idea. juce::StringArray just sits on top of juce::Array<juce::String> and Array has a sort using a similar ElementComparator. So the templated variant I had before would be doable for juce::Array.
The ListBoxModel is abstract though, it is not really a container, so I think here it doesn't really apply.

[ffAudio]

Bump with backlink to the forum
https://forum.juce.com/t/std-sort-on-juce-valuetree/52532/10

[ffAudio]

Anybody at juce?

[reuk]

At the moment, when not fixing critical bugs, we are focusing on major features:

• MIDI 2.0 support
• Improved unicode rendering
• Improved embedded webview support

Due to the limited size of the team we have to set our priorities carefully, so until JUCE 8 is released we're unlikely to add any features outside of these areas.

[ffAudio]

Thanks for the feedback