Propulsion.Tool: Add support for Cosmos Autoscaling

[brihadish]

Adds an --autoscale/-A switch to the propulsion tool to support autoscaling throughput of Cosmos containers and databases. Specifying this flag causes the --rus parameter to be interpreted as "Maximum RU/s" and changes the default value to 4000 RU/s (the minimum MaxRUs value allowed by Cosmos).

The hardcoding which existed in 'Equinox.CosmosStore.Core.Initialization.initAux' to enforce a default behavior of 'Manual throughput with 400 RU/s' has been brought into the propulsion tool.

[bartelink]

Did some cleanup on the stuff I cited as being good to copy, sorry 😊 !
cleaned up code: jet/equinox@1e67dfa ☺️
underlying nuget has been released, 🙏 @deviousasti https://www.nuget.org/packages/Equinox.CosmosStore/4.0.0-beta.6

[brihadish]

Thanks for review. I have pushed fixes pertaining to all the comments.

[bartelink]

Thanks, LGTM
Let me know when you're happy and I'll get it into the outbox

[brihadish]

I have tested the changes a few times and its working. We can proceed with the merge.

[bartelink]

Thanks for your contribution! Will ping when it hits nuget (will be 2.13.0-beta.7)
(And if you're looking at my cleanup, it aint nothing compared to the churn I did in jet/equinox@f1e9148 - its amazing the little things you learn about structuring Argu stuff over time...)

[bartelink]

(It's on nuget now https://www.nuget.org/packages/Propulsion.Tool/2.13.0-beta.7)

[brihadish]

Thank you for helping with the change :). Designing CLI tool is an art and your churn is a proof :).