Add additional automation tools

Added 7 additional automation tools:

- combine-media-queries (Grunt and Gulp)
- generate-sprite (Grunt and Gulp)
- image-resize (Grunt)
- inline-css (Grunt and Gulp)
- responsive-images (Grunt)
- svg-min (Grunt and Gulp)
- webp (Grunt and Gulp)

Wasn't sure how to find command line versions or modules (is it just their address on npmjs.org ?), so if they do exist, they are not included here. Thanks.