MemoryCache: depend on Store

[BoD]

In #5651 we've added Store's Guava KMP port to minimize lock contention with the memory cache. However we needed 2 changes: having the Wasm target setup, and a getAllPresent() API. We've opened PRs there so we can eventually add the dependency to our project if they are accepted while we've copied a few files in the meantime. This issue is to track that.

• PR adding the Wasm target (merged ✅)
• PR adding getAllPresent() (pending ⏳)
• Store releases

[martinbonnin]

Release in https://github.com/MobileNativeFoundation/Store/releases/tag/5.1.0-alpha04. Still blocked because we can't depend on alpha but progress!