MM-34787: Add colored output for non JSON console logs (#17388)

* MM-34787: Add colored output for non JSON console logs

https://mattermost.atlassian.net/browse/MM-34787

```release-note
A new field EnableColor is added to LogSettings and NotificationLogSettings.
Non-JSON console logs will now be colored if that field is set to true.
```

* Trigger CI

shared/mlog/testing.go

@@ -37,7 +37,7 @@ func NewTestingLogger(tb testing.TB, writer io.Writer) *Logger {
 		mutex:        &sync.RWMutex{},
 	}
 
-	logWriterCore := zapcore.NewCore(makeEncoder(true), zapcore.Lock(logWriterSync), testingLogger.consoleLevel)
+	logWriterCore := zapcore.NewCore(makeEncoder(true, false), zapcore.Lock(logWriterSync), testingLogger.consoleLevel)
 
 	testingLogger.zap = zap.New(logWriterCore,
 		zap.AddCaller(),