add LCJ issue template

Author: nuest

.github/ISSUE_TEMPLATE/new-lifecycle-journal-codecheck.md

@@ -0,0 +1,16 @@
+---
+name: New LCJ CODECHECK
+about: Add a paper to be evaluated as part of the collaboration with the Lifecycle Journal
+title: "[Author 1, Author 2, ...]"
+labels: lifecycle journal, needs codechecker
+assignees: nuest
+---
+
+**Submission ID**: ...
+
+**Links to code and data**:
+
+- ...
+- ...
+
+**Certificate**: `YYYY-NNN` <!-- will be assigned by a CODECHECK editor -->