add SVG + TTF files + css

required by tools mounted in 3rd party sites
change name of mixin
Add spacing above the footer on the action plan page
Merge pull request #322 from moneyadviceservice/improvement/bulletproof-fontface

add SVG + TTF fonts
Merge pull request #325 from moneyadviceservice/footer_spacing_issue

Add spacing above the footer on the action plan page
Use list of new categories loaded from YAML