feat: Add redisclient package to the monorepo

- Integrate the redisclient package into the workspace.
- Update the MONOREPO_CONVERSION_PLAN.md to reflect the
  completion of the redisclient package conversion.
  This includes marking its conversion as complete and
  updating the success metrics.
- Add the redisclient package's Cargo.toml file.
- Add the redisclient package's source code files.
- Add tests for the redisclient package.
- Add README file for the redisclient package.

Cargo.toml

@@ -11,7 +11,7 @@ categories = ["os", "filesystem", "api-bindings"]
 readme = "README.md"
 
 [workspace]
-members = [".", "vault", "git"]
+members = [".", "vault", "git", "redisclient"]
 
 [dependencies]
 hex = "0.4"
@@ -61,6 +61,7 @@ russh-keys = "0.42.0"
 async-trait = "0.1.81"
 futures = "0.3.30"
 sal-git = { path = "git" }
+sal-redisclient = { path = "redisclient" }
 
 # Optional features for specific OS functionality
 [target.'cfg(unix)'.dependencies]