Finished basic google home implementation with some slight refactors along the way

Cargo.lock

@@ -29,6 +29,7 @@ version = "0.1.0"
 dependencies = [
  "dotenv",
  "google-home",
+ "impl_cast",
  "paste",
  "rumqttc",
  "serde",
@@ -321,9 +322,11 @@ name = "google-home"
 version = "0.1.0"
 dependencies = [
  "anyhow",
+ "impl_cast",
  "serde",
  "serde_json",
  "serde_with",
+ "thiserror",
  "uuid",
 ]
 
@@ -369,6 +372,13 @@ version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b9e0384b61958566e926dc50660321d12159025e767c18e043daf26b70104c39"
 
+[[package]]
+name = "impl_cast"
+version = "0.1.0"
+dependencies = [
+ "paste",
+]
+
 [[package]]
 name = "indexmap"
 version = "1.9.2"