Add unsafe inflater impl

[Col-E]

Revisiting some optimizations from #12

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Unit Test results

0 tests  ±0   0 :heavy_check_mark: ±0   0s :stopwatch: ±0s 0 suites ±0   0 :zzz: ±0  0 files   ±0   0 :x: ±0 

Results for commit 701154dd. ± Comparison against base commit 5600a7f1.

:recycle: This comment has been updated with latest results.