Support for ABI packed encoding at cartesi send

[tuler]

This PR adds support for cartesi send --encoding abi-packed, to allow easy submission of inputs that use packed encoding. The following are valid commands:

cartesi-dev send --encoding abi-packed

cartesi-dev send --encoding abi-packed --abi-params uint8,uint64,uint16,uint64,int64,uint64,int64

cartesi-dev send --encoding abi-packed --abi-params uint8,uint64,uint16,uint64,int64,uint64,int64 3,1770308000,2,4412482,100000000000000000,4740165,3000000000000000

I also fixed the support for signed integers in the signature.

[changeset-bot]

🦋 Changeset detected

Latest commit: c7105cc

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@cartesi/cli	Patch

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[socket-security]

Review the following changes in direct dependencies. Learn more about Socket for GitHub.

Diff	Package	Supply Chain Security	Vulnerability	Quality	Maintenance	License
	listr2@​10.1.0

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[endersonmaia]

LGTM

Exercising the command it seems to work as expected.