feat(gnovm): forbid importing realms in packages #5816

Job	Run time
setup	6s
Run Main (gnodev) / Go Test / test	1m 18s
Run Main (gnodev) / Go Linter / lint	45s
Run Main (gnodev) / Go Build / generated	7s
Run Main (gnofaucet) / Go Build / generated	6s
Run Main (gnofaucet) / Go Linter / lint	37s
Run Main (gnofaucet) / Go Test / test	35s
Run Main (gnogenesis) / Go Build / generated	7s
Run Main (gnogenesis) / Go Linter / lint	35s
Run Main (gnogenesis) / Go Test / test	42s
Run Main (gnokeykc) / Go Build / generated	6s
Run Main (gnokeykc) / Go Linter / lint	34s
Run Main (gnomd) / Go Build / generated	7s
Run Main (gnokeykc) / Go Test / test	48s
Run Main (gnomd) / Go Linter / lint	29s
Run Main (gnomd) / Go Test / test	35s
	7m 37s

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