Replace chronicle-map key-value store

[lesserwhirls]

There are a few key-value stores within the TDS that are managed by net.openhft:chronicle-map. Managing this dependency, and its transitive dependencies, adds a layer of complexity that is ever increasing. As an example, chronicle-map pulls in an older version of jna that we can't safely replace using a dependency substitution (sometimes this works "good enough", but not always). There are a number of other problematic transitive dependencies that we've encountered over the years. This feeds back into netCDF-Java and its use of jna, which will become more important once Unidata/netcdf-java#753 is implemented.

I'm currently looking at EclipseStore as a possible replacement.