compression filters

[JohnLCaron]

internal enum class FilterType(val id: Int) {
none(0), deflate(1), shuffle(2), fletcher32(3), szip(4), nbit(5), scaleoffset(6),
bzip2(307),
zstandard(32015),

we have deflate, shuffle, fletcher32

netcdf-java has a bzip2 decompresser

jhdf has
BitShuffleFilter, // part of lz4 ?
ByteShuffleFilter,
FletcherChecksumFilter
LZ4 https://github.com/lz4/lz4-java
LZF https://github.com/ning/compress

Also see https://github.com/HDFGroup/hdf5_plugins/blob/master/docs/RegisteredFilterPlugins.md

[JohnLCaron]

Keep core small. Dont add compression librarires automatically, use some kind of plugin / SPI.

[JohnLCaron]

PR #170