Add Trace logging level; bump version

src/service/Logging.ts

@@ -1,4 +1,4 @@
-import {Logger, LoggingLevel, LogMessage} from '../util'
+import {DebuggingTraceIsNotAnError, Logger, LoggingLevel, LogMessage} from '../util'
 import {Singleton} from '../di'
 
 /**
@@ -109,6 +109,10 @@ export class Logging {
         this.writeLog(LoggingLevel.Verbose, output, force)
     }
 
+    public trace(output: unknown, force = false): void {
+        this.writeLog(LoggingLevel.Trace, output, force)
+    }
+
     /**
      * Helper function to write the given output, at the given logging level, to
      * all of the registered loggers.
@@ -119,10 +123,15 @@ export class Logging {
      */
     protected writeLog(level: LoggingLevel, output: unknown, force = false): void {
         const message = this.buildMessage(level, output)
+        const trace = DebuggingTraceIsNotAnError.getTrace()
+        const traceMessage = this.buildMessage(LoggingLevel.Trace, trace)
         if ( this.currentLevel >= level || force ) {
             for ( const logger of this.registeredLoggers ) {
                 try {
                     logger.write(message)
+                    if ( this.currentLevel >= LoggingLevel.Trace ) {
+                        logger.write(traceMessage)
+                    }
                 } catch (e) {
                     console.error('logging error', e)  // eslint-disable-line no-console
                 }