Support Java Runtime

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Describe the feature you'd like supported

Related to #952, as a first step to support Android we need to support the Java run time.

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FYI, here's a repo with a good start we can work from: https://github.com/wkgcass/msquic-java (thanks @wkgcass!).

[NewLunarFire]

As part of my work, I have developped a JNI for windows (unfortunately wkgcass' works only on Linux). I cannot directly contribute the code I have made for my JNI (I'm working on it) but maybe I can help shape the Java integration from my experience with the library. Also, further down the line, I would prefer using an "official" quic java library rather than maintain my own JNI.

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@NewLunarFire we'd love any help you'd like to contribute!