PUBDEV-2: Add more tests for C1SChunk.
PUBDEV-2: Add more tests for C2SChunk.
PUBDEV-2: Fix assertion order: expected vs actual.
PUBDEV-2: Imcrease test coverage for Newchunk to C1SChunk compression.
PUBDEV-2: Add inflate_impl test for C4SChunk.
PUBDEV-2: Update C4SChunk test to encode a 32-bit number range at totally different bias and scale.
PUBDEV-2: Fix inflate_impl for C4SChunk (known issue).
PUBDEV-2: Fix early float overflow into C8DChunk, and use C4SChunk until
full capacity of 32-bit integer range is reached. Previously, the range
was limited to 23-bits (~8M), wasting memory for fixed-precision numbers
between 6 and 8 digits (roughly speaking) - they would have otherwise
fit into 32-bits.

Also fix C4SChunk and NewChunk compression to correctly handle a long bias, not
just an int bias.

All tests pass now.
Merge branch 'master' of https://github.com/0xdata/h2o-dev