upgrade dependencies to prevent CVE-2019-10744, CVE-2019-13173, CVE-2018-14732, CVE-2018-16469, CVE-2018-1000620, CVE-2019-10744 and WS-2018-0236

Bump lodash.mergewith from 4.6.1 to 4.6.2

Bump ecstatic from 3.2.2 to 3.3.2

Bump handlebars from 4.0.11 to 4.1.2

Bump js-yaml from 3.12.0 to 3.13.1

Bump pem from 1.12.3 to 1.13.2

Replaced unnecessary model factories

Patch protractor with the latest webdriver-manager

removed unnecessary static type in NormalizedWorkflowItem and fixed generic type for NormalizedWorkspaceItem

Update environment.js with new demo site path

One-sided relationship filtering and refactoring

Conflicts:
	src/app/submission/sections/upload/section-upload.component.spec.ts

Add missing ResourcePolicyService

Conflicts:
	src/app/+item-page/simple/item-types/shared/item.component.spec.ts
	src/app/entity-groups/journal-entities/item-pages/journal-issue/journal-issue.component.spec.ts
	src/app/entity-groups/journal-entities/item-pages/journal-volume/journal-volume.component.spec.ts
	src/app/entity-groups/journal-entities/item-pages/journal/journal.component.spec.ts
	src/app/entity-groups/research-entities/item-pages/orgunit/orgunit.component.spec.ts
	src/app/entity-groups/research-entities/item-pages/person/person.component.spec.ts
	src/app/entity-groups/research-entities/item-pages/project/project.component.spec.ts
	src/app/submission/form/collection/submission-form-collection.component.spec.ts

Selectable themes

DS-4223 Metadata Schemas for configurable entities

Configurable browse-by

Bumps [lodash.mergewith](https://github.com/lodash/lodash) from 4.6.1 to 4.6.2.
- [Release notes](https://github.com/lodash/lodash/releases)
- [Commits](https://github.com/lodash/lodash/commits

)

Signed-off-by: dependabot[bot] <support@github.com>