feat(gnovm): gnomod.toml add new field draft

[MikaelVallenet]

fix second task of #4370
depends on #4407 (approved but not merged yet)

[Gno2D2]

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[codecov]

Codecov Report

Attention: Patch coverage is 43.33333% with 17 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
gnovm/pkg/gnolang/gotypecheck.go	15.00%	14 Missing and 3 partials ⚠️

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[moul]

Suggested change

	TCLatestStrict TypeCheckMode = iota // require latest gno.mod gno version.
	TCGLatestForbidDraftImp // require latest gno.mod gno version, but forbid import draft packages too
	TCLatestStrict TypeCheckMode = iota // require latest gnomod gno version, forbid draft.
	TCGenesisStrict // require latest gnomod gno version, allow drafts.

[MikaelVallenet]

Applied here: e059379
however i'm not convinced, run txs use TCLatestRelaxed, if we want to switch run txs to Strict check mode and decide to use TCLatestStrict, we will then block draft import for txs run without explicit way to see it except the comment next to the declaration of TCLatestStrict.

We could also migrate typecheckmode to a struct or interface that could make available some informations like (tx type [run, send, call, addpkg ...], height int, strict bool)

[moul]

After my last comment, it looks good to me.

However, let's wait for a few more reviews, at least from 2 or 3 of @jaekwon, @thehowl, and @ltzmaxwell.