Allow wildcards (globbing)

[alexeagle]

Currently, the gulp-clang-format plugin is our method to allow globbing all the files under a project.
If this fails (in checked-diff mode), it prints a command allowing us to re-format the correct files.

However, it's convenient to have a command-line which can be run to re-format everything in the project. The native clang-format binary doesn't support this (no way to expand nested directories in shell). But our wrapper could.

Then we could do something like
package.json: scripts: { 'format': 'clang-format -i' }
and npm run format would give the right versions and config for everything.

[mprobst]

I recently changed gulp-clang-format to work by using the tree diff plugin. Part of that effort is that we can now clang-format entire trees in a gulp pipe. It should be reasonably easy to write a gulp task to format all files in the project.

But I agree, npm run clang-format would be nice, too.

[filipesilva]

I've added a PR that enables globbing.

It's something I'd like to use for angular-cli without having to use gulp-clang-format.

[alexeagle]

Now available in 1.0.35