Split the VC into crates making it more modular (#6453)

* Starting to modularize the VC

* Revert changes to eth2

* More progress

* More progress

* Compiles

* Merge latest unstable and make it compile

* Fix some lints

* Tests compile

* Merge latest unstable

* Remove unnecessary deps

* Merge latest unstable

* Correct release tests

* Merge latest unstable

* Merge remote-tracking branch 'origin/unstable' into modularize-vc

* Merge branch 'unstable' into modularize-vc

* Revert unnecessary cargo lock changes

* Update validator_client/beacon_node_fallback/Cargo.toml

* Update validator_client/http_metrics/Cargo.toml

* Update validator_client/http_metrics/src/lib.rs

* Update validator_client/initialized_validators/Cargo.toml

* Update validator_client/signing_method/Cargo.toml

* Update validator_client/validator_metrics/Cargo.toml

* Update validator_client/validator_services/Cargo.toml

* Update validator_client/validator_store/Cargo.toml

* Update validator_client/validator_store/src/lib.rs

* Merge remote-tracking branch 'origin/unstable' into modularize-vc

* Fix format string

* Rename doppelganger trait

* Don't drop the tempdir

* Cargo fmt

validator_client/validator_store/Cargo.toml

@@ -0,0 +1,23 @@
+[package]
+name = "validator_store"
+version = "0.1.0"
+edition = { workspace = true }
+authors = ["Sigma Prime <contact@sigmaprime.io>"]
+
+[lib]
+name = "validator_store"
+path = "src/lib.rs"
+
+[dependencies]
+account_utils = { workspace = true }
+doppelganger_service = { workspace = true }
+initialized_validators = { workspace = true }
+parking_lot = { workspace = true }
+serde = { workspace = true }
+signing_method = { workspace = true }
+slashing_protection = { workspace = true }
+slog = { workspace = true }
+slot_clock = { workspace = true }
+task_executor = { workspace = true }
+types = { workspace = true }
+validator_metrics = { workspace = true }