Log actions publicly (#44)

* Log actions publicly

This puts the burden on the developer to mask sensitive data by
implementing `CustomStringConvertible`, if logging is enabled.

* Bump mac version

Privacy controls for logs are only available in macOS v11+

* Log at debug level

Package.swift

@@ -5,7 +5,7 @@ import PackageDescription
 
 let package = Package(
     name: "ObservableStore",
-    platforms: [.macOS(.v10_15), .iOS(.v15)],
+    platforms: [.macOS(.v11), .iOS(.v15)],
     products: [
         // Products define the executables and libraries a package produces, and make them visible to other packages.
         .library(

Sources/ObservableStore/ObservableStore.swift

@@ -332,7 +332,8 @@ where Model: ModelProtocol
     /// run on main thread when SwiftUI is being used.
     public func send(_ action: Model.Action) {
         if loggingEnabled {
-            logger.log("Action: \(String(describing: action))")
+            let actionString = String(describing: action)
+            logger.debug("Action: \(actionString, privacy: .public)")
         }
 
         // Dispatch action before state change