test(ngdoc/mockPackage): add mock Package for testing
fix(ngdoc/memberDocsProcessor): test and ensure doc.memberof is a full id
test(ngdoc/getDocFromAlias): test with mockPackage
refact(ngdoc): reorganization of processors and services
test(ngdoc/moduleDocsProcessor): test the processor
test(ngdoc/getLinkInfo): use mockPackage for testing