NPUW: Spatial execution #6124

Job	Run time
Smart_CI	22s
Build / Build	16m 55s
JS API	2m 47s
Python unit tests	29m 56s
CPU functional tests	35m 5s
Samples	9m 11s
C++ unit tests / C++ unit tests	19m 42s
OpenVINO tokenizers extension / OpenVINO tokenizers extension	7m 19s
Pytorch Layer Tests / PyTorch Layer Tests	26m 33s
TensorFlow Layer Tests / TensorFlow Layer Tests	17m 23s
ci/gha_overall_status_windows	1s
	2h 45m 14s

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