Better support for globs in cli

[louy]

Related to #692. Potentially fixed glob issues in windows.

This makes the cli accept a glob as a string and expand it.

It solves a problem with "arguments list is too large" when using regular globs.

[louy]

@adidahiya I think I'll add support for directories using a glob pattern "[directory]/*/.ts" for all passed directories. What do you think?

[adidahiya]

I don't see a need for automatically expanding directory paths into globs, so what you have here looks fine.

If your shell supports globs, wouldn't it still expand them though? How would you get around the "argument list is too large" issue? Would you have to provide a glob path as a string?

tslint 'src/**/*.ts'

[louy]

Yeah you'll have to provide the path as a string. However, I'm planing to accept directories and convert them to a glob like "[directory]/**.ts". this will be done in a separate PR, so in the future you'll be able to do tslint . or tslint src/ and it will walk through all .ts files in that directory.

[adidahiya]

@louy cool, I like the idea of adding support for directories in a separate PR