1. src/app/openaireLibrary/claims/claim-utils/service/contexts.service.ts & src/app/openaireLibrary/services/searchResearchResults.service.ts:
Added in constructor default value null for HttpClient.
2. src/app/openaireLibrary/landingPages/landing-utils/parsingFunctions.class.ts:
a. In method "parseIdentifiers()", concat quotes in pid.content to make it string always.
b. In method "parseResults()" if "data" is null, return empty array.
git-svn-id: https://svn.driver.research-infrastructures.eu/driver/dnet40/modules/uoa-services-library/trunk/ng-openaire-library/src/app@61218 d315682c-612b-4755-9ff5-7f18f6832af3
03e5cb0c4a