FlutterTest command needed

[h4kbas]

I think executing test tasks without leaving vim is a necessity and unfortunately I couldnt find any command related. Can you please add a command like FlutterTest which would have at least the following functionality:

1. FlutterTest without no parameters executes all tasks same as CLI tool
2. FlutterTest will execute only given tasks if there is a parameter available same as CLI tool

[thosakwe]

I don't have any specific plans to implement this, but I'd be more than happy to take a pull request if you send one.