Add stub methods to show unannotated paralogs info panel

[twalsh-ebi]

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Description

This PR would add stub methods EnsEMBL::Web::Object::Gene::has_unannotated_paralogs and ComparaParalogs::_show_unannotated_paralogs_info_panel, for use in eg-web-plants PR 102.

Views affected

This PR is mainly expected to affect the Plants Compara paralogue view, where it enables an info box in the paralogue view of genes having unannotated paralogies.

The has_unannotated_paralogs method adds of the order of 10ms to the load time of the paralogue view of a gene with unnannotated paralogues, and of the order of 1ms for genes that are not in a tree having unannotated paralogues.

Because stub methods are used, this change is expected to have a negligible effect on the ComparaParalogs component in other websites.

Possible complications

No complications are expected.

Merge conflicts

None detected.

Related JIRA Issues (EBI developers only)

• ENSINT-1899