fixed an issue where the resolver wouldn't hand over responsability to the page component, and added a loading screen for resolving routes

Conflicts:
	package.json
	src/app/shared/shared.module.ts
	yarn.lock

fixed issue where the search results would reload when the search method was triggered from somewhere else

Dynamic forms Components

Merge branch 'search-features' of https://git.atmire.com/contributions/dspace-angular into search-features

Conflicts:
	src/app/+search-page/search-filters/search-filter/search-filter.service.ts