Pp-sketchlib

New features:
- Adds functions to grow network in 1D or 2D, by iterating boundary forward 48

Bug fixes:
- Compile without openMP

New features:
- More optimised compile options for emcc, including removing exception handling 60a803ff30245e19e8fe0c15b73f9905a8f6cccc

Bug fixes:
- Segfault when GPU distances were calculated using multiple blocks 44

Cosmetic code changes:
- Combine matrix index functions for CPU and GPU code 44
- Reflow all of the code, fix inconsistent tab/space indentation 45

New features:
- Add WebAssembly version (for single queries) 40.
- Allow random on/off in jaccard dist bindings 41.

Bug fixes:
- Fixed a stall with GPU distances sometimes triggered due to a misplaced `__syncwarp()` call.
- Check for sketches which exceed GPU shared memory size, and use global memory rather than failing if it won't fit 43.
- Check all CUDA API calls, including kernel launches.
- Remove `-march=native` from the CMakeLists.txt, which may have been causing Illegal Instruction errors

- Fixes bug with ref v query distances (variable overwritten)
- Adds a test for ref v query distances

- Modifies the operation of the sparsification of distances to correctly deal with zero distances
- Removes parallelisation of distance sparsification (causing issues on some platforms)
- SIMD openmp commands removed from matrix operations

Important bugfix (see https://github.com/johnlees/PopPUNK/issues/95):
- Inputs to the CPU query API were being sorted by name, returning distances not in the expected order. This will have worked with `poppunk_sketch` but not through other software such as PopPUNK, unless the input was alphabetical.