FEAT: New `requireArr` transform

**Usage**

**In your code**
```javascript
// pass the path using `globs` like the ones grunt.file.expand method will accept
// if you want to exclude a module, use the `!` prefix to exclude files from being required
var modules = requireArr('./modules/**/*.js');
var moreModules = requireArr('./modulesB/**/*.js', './modulesA/**/*.js', '!./modulesB/excluded.js');

```
**In your grunt browserify config**
```javascript
// in your grunt-browserify config
options: {
  preBundleCB: function ( b ) {
    // this will register the transform
    b.transform( require( 'build-workflow/utils/require-arr' ));
    return b;
  }
}
```
BLD: Release v0.0.34