Feat/allow timespans in force up and downtime + fix everything

[jonathan-mayer]

Motivation

Closes #120
blocked by #118

Changes

• bump deps by overwriting controller runtime version to compatible one with keda (this should be automatically replaced by dependabot or go mod tidy once keda supports that version
• remove tristatebools
• exclude, force up/downtime allow timespans
• add boolean timespans
• remove unintended behavior during overlapping timespan periods
• early return in getForcedScaling
• allow force up/downtime to be overwritten to false in more specific layers
• use correct log message when forced scaling set to false/inactive and no other scaling set
• add/change some comments
• ungroup exclude and exclude until
• fix ignoring false/non-unset exclusion values
• add a bunch of tests
• update tests to use simpler booleanTimeSpans instead of computed timespans which resolve to true/false

Tests done

• unit tests passed

TODO

[samuel-esp]

Everythings seems ok to me, just check the couple of comments I made. That was a complex refactoring, well done Jonathan

[samuel-esp]

LGTM