Cosmos SDK v2 support

[julienrbrt]

Now that Cosmos SDK v0.52 is wiring is 95% complete, we can start adding scaffolding for v2.
v2 will be the default scaffolded chain, v0.52 baseapp, will be a flag.

--minimal will scaffold a v2 app, --minimal --legacy will scaffold a minimal v0.52 baseapp app.

We'll need to improve the detection to be v2 based, and add cosmosanalysis tests for v2 as well