feat: tx builder

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WIP

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This pull request has been linked to 1 task:

• T-9386 Scaffold out initial utilities contract helpers (unlink task)

💡Tip: Add "Close T-9386" to the pull request title or description, to a commit message, or in a comment to mark this task as "Done" when the pull request is merged.

[github-actions]

🎉 Canary Release
To install use
npm install @aave/math-utils@1.16.1-922726713bb14362e456b8e9cf2b9528f3f8d161.0+0adec71
npm install @aave/contract-helpers@1.16.1-922726713bb14362e456b8e9cf2b9528f3f8d161.0+0adec71

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Link T-9386

[github-actions]

🎉 Canary Release
To install use
npm install @aave/math-utils@1.16.1-753371dfc183e0ec8e69f589ff0cde7c6fed8e82.0+3b47896
npm install @aave/contract-helpers@1.16.1-753371dfc183e0ec8e69f589ff0cde7c6fed8e82.0+3b47896

[github-actions]

🎉 Canary Release
To install use
npm install @aave/math-utils@1.16.1-67ae09f3e4371badb0267ab7a14d778c6cbdaa0b.0+3fbcbc4
npm install @aave/contract-helpers@1.16.1-67ae09f3e4371badb0267ab7a14d778c6cbdaa0b.0+3fbcbc4

[github-actions]

🎉 Canary Release
To install use
npm install @aave/math-utils@1.16.1-a0a99b7da3428ab04d0c98462588909c23ba8129.0+4bb5acf
npm install @aave/contract-helpers@1.16.1-a0a99b7da3428ab04d0c98462588909c23ba8129.0+4bb5acf