Add tracing integration with opentelemetry

src/api/Cargo.toml

@@ -26,11 +26,14 @@ err-derive = "0.3"
 hex = "0.4"
 hmac = "0.10"
 idna = "0.2"
-log = "0.4"
+tracing = "0.1.30"
 md-5 = "0.9"
 nom = "7.1"
 sha2 = "0.9"
 
+strum = "0.23"
+strum_macros = "0.23"
+
 futures = "0.3"
 futures-util = "0.3"
 pin-project = "1.0"
@@ -49,3 +52,5 @@ serde_bytes = "0.11"
 serde_json = "1.0"
 quick-xml = { version = "0.21", features = [ "serialize" ] }
 url = "2.1"
+
+opentelemetry = "0.17"