Merge branch 'currency-info' into 'develop'

src/app/app-routing.module.ts

src/app/app.component.ts

src/app/currency/currency-routing.module.ts

src/app/currency/currency.module.ts

src/app/currency/currency.page.html

src/app/currency/currency.page.scss

src/app/currency/currency.page.ts

src/app/settings/settings.model.ts

src/app/settings/settings.page.html

src/app/settings/settings.page.ts

src/app/settings/settings.service.ts

src/app/shared/pipes/block-timestamp.pipe.ts

src/app/shared/pipes/duration.pipe.ts

src/app/shared/pipes/pipes.module.ts

src/theme/_cesium.scss