[FR] - Create Cardano.Api.Experimental.Query.Expr module with queries using experimental API

[carbolymer]

Internal/External
Internal if an IOHK staff member.

Area
Other Any other topic (Delegation, Ranking, ...).

Describe the feature you'd like
In order to move forward with new Eras code (from Cardano.Api.Experimental), the query module should be rewritten, with the use of the new Era era type.

The new module should placed into Cardano.Api.Experimental module to not break backward compatibility and ease future upgrade.

References

1. https://cardano-api.cardano.intersectmbo.org/cardano-api/internal/Cardano-Api-Query-Expr.html
2. https://cardano-api.cardano.intersectmbo.org/cardano-api/internal/Cardano-Api-Experimental-Eras.html