Making simdb optional

[timsnyder]

I don't use simdb (yet). Not sure I will. I'm facing an issue where it would be nice if simdb could be optionally included in the build of Sparta so that I don't have to worry about it's unused 3rd party dependencies causing linking errors later on at runtime.

I'm starting to look at what it would take to add a cmake option to enable/disable simdb being included in the sparta build. I'm curious to know whether anyone else would like to see this upstreamed or if the team views simdb as an integral part of sparta that shouldn't be considered optional?

[klingaard]

I like that idea a lot. Not sure how integrated it is, however. I don't use it yet either but plan to this go around.

[timsnyder]

@colby-nyce, now that you're back looking at things again, I'd be curious if you have thoughts about this topic.

[klingaard]

@colby-nyce is actually looking at this right now for map_v3. See #509 I'm thinking about making this the "first release" of map_v3 as it's probably the least impactful idea we have in that list.