Support new LogEvent interface

SwiftLog introduced the LogEvent LogHandler API with commit 1f38a59. This commit implements that new interface.
This was contributed by FelixSFD on GitHub.

See: https://github.com/apple/swift-log/commit/1f38a59922ca4279899142dce5bc489105322c37

Package.resolved

@@ -6,8 +6,8 @@
       "kind" : "remoteSourceControl",
       "location" : "https://github.com/apple/swift-log",
       "state" : {
-        "revision" : "bbd81b6725ae874c69e9b8c8804d462356b55523",
+        "revision" : "5073617dac96330a486245e4c0179cb0a6fd2256",
-        "version" : "1.10.1"
+        "version" : "1.12.0"
       }
     }
   ],

Sources/Logging OSLog/Logging OSLog.swift

@@ -84,6 +84,13 @@ public struct LoggingOSLog: LogHandler {
 		let message = messageParts.compactMap { $0 }.joined(separator: " → ")
 		self.oslogger.log(level: OSLogType.from(loggerLevel: level), "\(message, privacy: .public)")
 	}
+    
+    /**
+        This function is called by [SwiftLog](https://github.com/apple/swift-log).
+     */
+    public func log(event: LogEvent) {
+        self.log(level: event.level, message: event.message, metadata: event.metadata, source: event.source, file: event.file, function: event.function, line: event.line)
+    }
 
 	/**
 		Use subscripts on struct instances, to add metadata for all future log messages.