Fix parser defects (multiselect enums, images, namespaces, XHTML) + Maven build, CI and 68 tests#2

Tob1as864 merged 2 commits into

masterTob1as864/ReqIF-Parser-Java:masterfrom

claude/reqif-parser-error-analysis-fz13y4Tob1as864/ReqIF-Parser-Java:claude/reqif-parser-error-analysis-fz13y4Copy head branch name to clipboard