add new district templates

=5

...images/background-images/district/carousel_desktop_bg.jpg

.../images/background-images/district/carousel_mobile_bg.jpg

...k_uistyleguide/static/images/district/logo-full-black.svg

...k_uistyleguide/static/images/district/logo-full-white.svg

...yleguide/templates/patterns/molecules/menus/carousel.html

...templates/patterns/molecules/menus/district/carousel.html

...templates/patterns/molecules/menus/district/carousel.yaml

...mplates/patterns/organisms/articles/articles_section.html

...atterns/organisms/articles/district/articles_section.html

...atterns/organisms/articles/district/articles_section.yaml

...s/patterns/organisms/articles/main_articles_timeline.html

...s/patterns/organisms/articles/main_articles_timeline.yaml

...ganisms/candidates/district/candidate_secondary_list.html

...ganisms/candidates/district/candidate_secondary_list.yaml

.../patterns/organisms/header/district/elections_header.html

...tes/patterns/organisms/header/district/people_header.html

...tes/patterns/organisms/header/district/people_header.yaml

.../templates/patterns/organisms/layout/district/navbar.html

.../templates/patterns/organisms/layout/district/navbar.yaml