ref(QualityController) Add recovery mechanism and adjust the resolution check. (#2546)
* ref(QualityController) Add recovery mechanism and adjust the resolution check.
Impl a recovery mechanism for the lastN to be increased if the cpu limitation goes away and doesn't return after increasing lastN. Also, additionally improve the calculation of the expected resolution taking simulcast stream resolutions into account.
* squash: Address review comments and add more unit tests
* squash: Address review comments