feat(gnovm): forbid importing realms in packages #6359

Job	Run time
setup	4s
Run Main (gnodev) / Go Build / generated	7s
Run Main (gnodev) / Go Linter / lint	36s
Run Main (gnodev) / Go Test / test	48s
Run Main (gnofaucet) / Go Build / generated	7s
Run Main (gnofaucet) / Go Linter / lint	25s
Run Main (gnofaucet) / Go Test / test	14s
Run Main (gnogenesis) / Go Build / generated	11s
Run Main (gnogenesis) / Go Linter / lint	28s
Run Main (gnokeykc) / Go Build / generated	6s
Run Main (gnokeykc) / Go Linter / lint	24s
Run Main (gnogenesis) / Go Test / test	30s
Run Main (gnokeykc) / Go Test / test	17s
Run Main (gnomd) / Go Build / generated	6s
Run Main (gnomd) / Go Linter / lint	19s
Run Main (gnomd) / Go Test / test	23s
Run Main (gnomigrate) / Go Build / generated	7s
Run Main (gnomigrate) / Go Linter / lint	26s
Run Main (gnomigrate) / Go Test / test	22s
	6m 0s

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