chore: merge with scaffolding

[joepegler]

PR-Codex overview

This PR focuses on restructuring the project to use @bico namespace, adding account creation functionalities, and enhancing test coverage.

Detailed summary

• Renamed package from biconomy/core to @bico/core
• Added account creation functionalities
• Updated test configurations
• Implemented account-related actions and utilities
• Updated package dependencies and exports

The following files were skipped due to too many changes: packages/core/common/utils/abis.ts, packages/core/account/yarn.lock, packages/core/common/utils/constants.ts, packages/core/account/createBiconomySmartAccount.ts

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