Restructre time frequency tests and fixing some recently surfaced bugs when using time domain models

This restructures some tests with the introduction of CoupledTimeAndFrequencySeries

added 5 commits

• 60b6ac18...930f961f - 3 commits from branch master
• c07845e4 - Merge remote-tracking branch 'origin/master' into restructre_time_frequency_tests
• 675b8a9b - Does no longer reset the frequency array when running in the time domain

Compare with previous version

added 3 commits

• 7a6ba1e4 - Does no longer reset the frequency array when running in the time domain
• 0c974185 - Does no longer reset the frequency array when running in the time domain
• 0818f2a4 - Reverted the recent bug fix change as it is no longer needed

Compare with previous version

changed title from Restructre time frequency tests to Restructre time frequency tests and fixing some recently surfaced bugs when using time domain models

approved this merge request

approved this merge request

mentioned in commit ba428499

merged