Redirecting stdout to avoid banners while `import`ing

[stevengj]

@Tero_Frondelius

Wouldn’t it work, if you just add this:
ENV["NEMO_PRINT_BANNER"] = false as the first thing in your Module?

(The environment is then only set during precompilation—this is when top-level code in the module is executed—and will no longer be set when the user imports the module at a later time.)