Add LZ4 compressor with Java9 perf improvements #77584
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Java9 added a number of features that are useful to improve compression
and decompression. These include the Arrays#mismatch method and
VarHandles. This commit adds compression tools forked from the java-lz4
library which include these improvements.
This commit is a back port modification of #77153. As we target Java8 on
7.x, the Java9 methods are not available. This commit uses MethodHandles
to implement the Java9 perf methods if the JDK is JDK9+. Otherwise, it falls
back to legacy versions.