[N/A] Complete layout structure

Reviewed by N/A
[N/A] Add logo image placeholder

Reviewed by N/A
[N/A] Correct stylesheets folder structure

Reviewed by N/A
[N/A] Add custom stylesheet

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[N/A] Add header, footer and stylesheet partials. Add some css to custom.css file.

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[N/A] Move stylesheet assets to vendor, Use bootstrap instead of blueprint

Reviewed by N/A
Merge branch 'feature/filling-in-layout' into develop