Add conan recipe for JUCE framework

[Andy]

It would be great, if JUCE would be available from Conan.
Conan - is a modern C++ package manager.
There is already unofficial recipe:

khdkhd/conan-juce/blob/master/conanfile.py

I have opened a ticket in conan-center community

[request] <LIBRARY-NAME>/<LIBRARY-VERSION>