Implemented feature 767 partially.

(Only string imports are tracked, no pragma(lib)).
Implemented -deps with no args

Purpose: Output everything dependency related to stdout.

Prints to stdout + prefix for different kind of dependencies:

depsVersion Any version() found
depsImport Any imports found (same as -deps=file output, except prefixed with depsImport)
depsFile Any file imports found
depsLib Any libraries specified with pragma(lib)
depsDebug  Andy debug() statements found (Not yet implemented)