will-rowe/groot: v1.1.2

Minor release after a couple of patches. Main changes:

• better indexing and serialisation strategy - results in much smaller files
• code has been cleaned up to remove unused packages - e.g. old LSH Forest code
• fixed a data race that occurs when a read maps to multiple graphs and resulted in concurrent request to reverse complementing
• added in a few specific GC calls when GROOT is compiled for JS - this is used in the WASP branch