'GET /api/tools/{tool_id}/requirements
Return the resolver status for a specific tool id.
[{"status": "installed", "name": "hisat2", "versionless": false, "resolver_type": "conda", "version": "2.0.3", "type": "package"}]'

@expose_api
@web.require_admin
def requirements(self, trans, id, **kwds):

    tool = self._get_tool(id)
    return tool.tool_requirements_status
