fix(gnovm): charge gas for type checking the Go AST statically

[odeke-em]

Typechecking the Go abstract syntax tree incurs a huge penalty as part of the GnoVM's functionality when starting up and before running a package, hence it is only natural to also charge a cost. At first the charges shall be naive and as we expend more thought and research, shall refine what and how much to charge.

[Gno2D2]

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[codecov]

Codecov Report

Attention: Patch coverage is 87.71930% with 7 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
gnovm/pkg/gnolang/gotypecheck.go	89.09%	6 Missing ⚠️
gno.land/pkg/sdk/vm/keeper.go	50.00%	0 Missing and 1 partial ⚠️

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