Apple M1 compatibility/Updated build instructions

[AvneeshSarwate]

I am trying to build the library for M1 macs (pulling the latest Syphon-Framework branch), but the build instructions seem to be outdated (https://stackoverflow.com/questions/50352098/javah-missing-after-jdk-install) - it seems javah is no longer distributed with the JDK (in favor of javac -h). Would it be possible to update the build instructions and/or provide updated native_libs artifacts?