CB-6878 Launching a specific Windows Emulator using the run command fails when spaces are in the path

When trying to run app on specific target using --target== key
```
cordova run wp8 --target=5E7661DF-D928-40ff-B747-A4B1957194F9
```
i get following error:

```
ERROR: command failed in deploy.js : d:\PROJECTS\Temp\test-spaces 2\platforms\wp8\cordova\lib\CordovaDeploy\CordovaDeploy\bin\Debug\CordovaDeploy.exe d:\PROJECTS\Temp\test-spaces 2\platforms\wp8 -d:1
Error: the file d:\PROJECTS\Temp\test-spaces 2\platforms\wp8\cordova\lib\CordovaDeploy\CordovaDeploy\bin\Debug\Properties\WMAppManifest.xml does not exist
```

Reason: command that start CordovaDeploy is not escaped in target() function.

Fix for [CB-6878](https://issues.apache.org/jira/browse/CB-6878)