[FR] add alias support

[Cologler]

For example, cs or csharp can map to visual studio, py can map to python.
This could be a configuration file then we can add it by ourself.

[msfeldstein]

if it doesn't make the code more complex i'm open to a PR but it seems like something we don't really need.

[Cologler]

@msfeldstein How about let the configuration file only exists on local disk?