Add charts to currency page

package-lock.json

package.json

src/app/currency/currency-history.model.ts

src/app/currency/currency.converter.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/currency/currency.service.ts

src/app/network/indexer/indexer-currency.gql

src/app/network/indexer/indexer-types.generated.ts

src/app/network/indexer/indexer.service.ts

src/app/network/pod/pod-schema.graphql

src/app/network/pod/pod-types.generated.ts

src/app/shared/functions.ts

src/app/shared/pages/base-page.class.ts

src/app/transfer/send/transfer.controller.ts

src/assets/i18n/ca.json

src/assets/i18n/en-GB.json

src/assets/i18n/en.json