Recipes for creating commandline tools from Rascal programs

[jurgenvinju]

We had this request on stackoverflow multiple times: how to create a commandline tool for Rascal programs.

Also for the proposed Recipes on Java model extraction, users would like to create commandline tools for their users to extract and analyze the information further. For example with CSV or JSON output and Java code as input.

Proposal to add a recipe for writing main functions with commandline parameters, as supported by both the compiler and the interpreter, and to write manuals for both generating self-executable jars for compiled code as well as interpreted code.

[jurgenvinju]

idea by @mrvchaudron; thanks!