feat(ur-sdk): allow commands override

This commit refactors the parser to allow injection of arbitrary commands definitions. This enables supporting old UR command sets

PR Scope

Please title your PR according to the following types and scopes following conventional commits:

fix(SDK name): will trigger a patch version
chore(<type>): will not trigger any release and should be used for internal repo changes
<type>(public): will trigger a patch version for non-code changes (e.g. README changes)
feat(SDK name): will trigger a minor version
feat(breaking): will trigger a major version for a breaking change

Description

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How Has This Been Tested?

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Are there any breaking changes?

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If there are breaking changes, please ensure you bump the major version Bump the major version (by using the title feat(breaking): ...), post a notice in #eng-sdks, and explicitly notify all Uniswap Labs consumers of the SDK.

(Optional) Feedback Focus

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(Optional) Follow Ups

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Uniswap / sdks