fix: bind IAddressable instances to runtime when deserializing from JSON #10

[heikki-heikkinen-ptcs]

Uses Orleans JSON serialization settings instead of copy-pasting the same code to this library. Orleans.Core was already referenced.
Extracts serialization to/from RedisValue behind an interface where the implementation is selected when bootstrapping.
Attempts to fix migration from old implementation where state was stored as a plain key without etag to hash based structure.
Adds extension point to inject custom JSON converters to the JSON serialization settings.

[heikki-heikkinen-ptcs]

The format selection in RedisGrainStorage.GetKey (var format = _options.UseJson ? "json" : "binary";) does not belong in that class any more, will fix on monday.

[heikki-heikkinen-ptcs]

What is wrong with the CI? The test stage takes hours and then gets canceled?

[ReubenBond]

I'm not sure @heikki-heikkinen-ptcs - does this work locally for you?

[ReubenBond]

By the way, have you seen dotnet/orleans#6936?

[heikki-heikkinen-ptcs]

Yes, test pass locally. They are a bit heavy since they require an actual redis instance to be running. I would strongly recommend checking out the branch while reviewing and running it locally. You tend not to see enough of the context when only looking at the diff.

And no, I have not seen that. I'll have to check it out.

[ReubenBond]

Those CI tests run against a Redis container.

[heikki-heikkinen-ptcs]

@ReubenBond I removed the test class I added and tests seem to pass now.

[heikki-heikkinen-ptcs]

Resolved conflicts with target branch. Is this ever going to get reviewed?

[ReubenBond]

Many apologies, @heikki-heikkinen-ptcs, I completely missed this.