This commit adds a tsm1 function for encoding a batch of booleans into a
provided buffer.
The following benchmarks compare the performance of the existing
iterator based encoders, and the new batch oriented encoders using
randomly generated sets of booleans.
* APIs decode an entire byte slice of encoded data into the provided
`dst` slice
* APIs are stateless and in almost all cases avoid any allocations
* Intended to be used future batch-oriented TSM block decode APIs
* duplicated tests from original iterator-based APIs
sans
Stuart Carnie
Mark Rushakoff
Edd Robinson