creating a dub project and writing stdin to stdout

A lexer takes an input text and writes output. This is why stdin in
read, "lexed" (about to come) and written to stdout.
adding a testfile

to have lots of source to lex, I chose the biggest file of d code in
phobos and added it to a test folder.
Merge pull request #1 from 8Monkeys/dub_init

merging files for dub