Re #9336 Added monitors to the test
Refs #9536 Update C2E system tests to check multi file reduction.
Revert "Refs #9536 Update C2E system tests to check multi file reduction."

This reverts commit c62ab658a817505d8c29381400623e1c59083061.
Revert "Revert "Refs #9536 Update C2E system tests to check multi file reduction.""

This reverts commit 158bf2add7d8dcf0a1329524f8ce3869b6edc6a6.
Merge remote-tracking branch 'origin/bugfix/9536_c2e_masking_bug'
Merge remote-tracking branch 'origin/bugfix/9536_c2e_masking_bug'
Re #6813. Update reference result.

Now that events that came in while the run was paused are filtered out.
Merge remote-tracking branch 'origin/feature/9336_Add_monitor_to_LoadILL'
Merge remote-tracking branch 'origin/feature/6813_take_notice_of_pause'
Merge branch 'master' of https://github.com/mantidproject/systemtests into feature/9630_poldi_truncate_data_test