feat: added flow_health feature

Author: raphael-goetz

Cargo.toml

@@ -26,4 +26,5 @@ doctest = true
 default = ["all"]
 flow_definition = []
 flow_config = []
-all = ["flow_definition", "flow_config"]
+flow_health = []
+all = ["flow_definition", "flow_config", "flow_health"]

src/flow_health/mod.rs

@@ -3,3 +3,6 @@ pub mod flow_definition;
 
 #[cfg(feature = "flow_config")]
 pub mod flow_config;
+
+#[cfg(feature = "flow_health")]
+pub mod flow_health;