use wasm rulesengine

[cbrady]

No description provided.

[bpapillon]

Nice.

A few things that could be followups:

• I'm a little anxious in general about packaging and install concerns related to the wasm binary - given this is kind of a non-standard thing to do, it seems like there are a lot of places along the chain of development -> end user install (bundling, publishing from nuget, downloading from nuget, installing) for the wasm binary to disappear or fail to load, and this seems like the kind of failure mode that might manifest in different ways across language and packaging ecosystems, while also being hard to catch pre-merge (since packaging hasn't happened yet). The E2E tests migt be the right place to catch this - perhaps we can follow up by making sure we have E2E tests that will fully exercise at least one flag evaluation that runs through the wasm binary on a library version that was installed from the package manager? This may already be the case, but regardless, could you check on the E2E tests after this to confirm this. Lmk if this doesn't make sense we can talk about it live.
• I was looking at GetVersionKey() - I'm not sure we actually use it in the cache-key as noted