Use path.extension:row:column syntax when reporting locations

[multimeric]

Currently miniWDL errors look like this:

(/path/to/file.wdl Ln 190 Col 34) Unknown identifier command_mem

However it would be advantageous to use a more machine readable format. Many IDEs inherently understand path.extension:row:column or path.extension:row, and when you click on such a string, it will automatically open the file and jump to the correct line in the editor. I believe VS Code, IntelliJ, and Sublime Text all support this.

Could we change the default error message to be like this:

(/path/to/file.wdl:190:34) Unknown identifier command_mem

Alternatively, could there be a flag passed to miniwdl check that turns on this format?