[5.x]. Backport. move pointseries test module (#11635)

[thomasneirynck]

No description provided.

[thomasneirynck]

failing dashboard test:

✖ fail: "dashboard app dashboard view edit mode shows lose changes warning and loses changes on confirmation when a filter is deleted"
         │        tryForTime timeout: Error: expected filters
         │           at /var/lib/jenkins/workspace/elastic+kibana+pull-request+multijob-selenium/test/functional/apps/dashboard/_view_edit.js:179:40
         │           at undefined.next (native)
         │           at step (/var/lib/jenkins/workspace/elastic+kibana+pull-request+multijob-selenium/test/functional/apps/dashboard/_view_edit.js:1:1)
         │           at /var/lib/jenkins/workspace/elastic+kibana+pull-request+multijob-selenium/test/functional/apps/dashboard/_view_edit.js:1:1
         │           at process._tickDomainCallback (internal/process/next_tick.js:135:7)

jenkins, test this

[thomasneirynck]

jenkins, test this

[thomasneirynck]

the flaky test is this one: #11339