Introduce MicrosoftLogLevel LayoutRenderer

Just like `${level}` but mapping to to Microsoft LogLevel-string-values:

- **Critical**
- **Debug**
- **Error**
- **Information**
- **None**
- **Trace**
- **Warning**

Maybe consider introducing a short enum-version (Matches Microsoft Console Logger):

- **Crit**
- **Dbug**
- **fail**
- **info**
- **none**
- **trce**
- **warn**