Time based partitioning flags for the store

[craigfurman]

It'd be neat if we could pass config elements that map to the --max-time and --min-time thanos store flags, to implement time-based partitioning (https://thanos.io/tip/components/store.md/#time-based-partitioning). At the moment, I'm doing this by patching the jsonnet-generated statefulset to append to the container's args.

I'm happy to make a PR, if this is a feature the maintainers want.

[metalmatze]

Glad to hear that the patching like that works for you, exactly why we want to use jsonnet.
I'm happy to get this into the project itself. Feel free to create a PR.

[craigfurman]

Thanks @metalmatze. I've had a go at it, let me know what you think if you find time to review it: #187.

[craigfurman]

It looks like this was implemented in #213.