Merge branch 'master' of https://git.floop.org.uk/git/ONS/pmd-jenkins-library into add_tests

uploadCodelist first deletes codelist graph to clear out any previous mistakes

Test for jobDraft.replace() issue. Extend Exception rather than Throwable.

Test for and add cache buster config as part of publish.

Use Apache http components directly in cube import pipeline, with attempt to use FileInputStream for streaming potentially large HTTP requests.

Try implementing with callable global to set things up and compiled class implementing drafter methods. Use test JSON files as responses.

Add configFileProvider and credentials binding plugins, for testing Jenkins stored parameters.

drafter.queryDraft with GET instead of POST

Configure http-request not to throw `hudson.AbortException` on 4XX

Fix query url

Attempt to set Accept as custom header, not using acceptType param

Candidate version of drafter.queryDraftset

Factor out components and codelists table2qb pipelines.

Ensure data inserted into jobDraft

Delete by path not label

Delete jobDraft only if present

Debugging issue with uploadTidy() not appearing to be called when optional datasetPath argument isn't supplied.

uploadTidy takes optional datasetPath argument ...

Also requires that we delete datasets by path, not label

Improved jobDraft logging

jobDraft.replace Try with finally

Split draft creation and use ...

Requires drafts to be created in the job, not per operation

drafter.findOrCreateDraftset

Skip deleting draftset

Skip filename in self-call

Oh my typo

See if coercion helps groovy find drafter.findDataset ...

java.lang.NoSuchMethodError: No such DSL method 'findDraftset' found among ... globals [..., drafter, ... ]
    ...
    at dataset.delete(/var/jenkins_home/jobs/GSS_data/jobs/Migration/jobs/ONS-Local-Area-Migration-Indicators/builds/44/libs/pmd/vars/dataset.groovy:10)

More findDraftset typos

s/draftset/drafts typo

Extract dataset.delete and draftset.findDraftset

Extract util.slugise()