Support linking all builds of a specific Jenkins job to all issues of a specific Jira project.

Currently a build needs to have an issue key mentioned in order for it to be linked to an issue in Jira.

There are use cases where all builds of a specific job will always relate to all the issues in a project.

A new project configuration page should be added to allow project administrators to link a Jenkins Job to the project so that all builds of that job will be linked to issues of the project.