Adds support re-create approval requests based on unapprovedTx when client restarts

[vinistevam]

Explanation

This PR aims to add initApprovals function to support re-create approval requests based on unapprovedTx when the client restarts. This is an existent function in the extension and it's coming to the core as part of the effort to unify the TransactionController in the core and in the extension.

Changes:

• Addtional parameter in processApproval and requestApproval to determine if when creates an approval request it should be shown (shouldShowRequest).
• Created an utility function transactionMatchesNetwork to facilitate the validation of whether a given transaction matches the specified network or chain ID.

resolves: https://github.com/MetaMask/MetaMask-planning/issues/959

Changelog

@metamask/transaction-controller

• ADDED: Adds initApprovals function to support re-create approval requests based on unapprovedTx when the client restarts

Checklist

• I've updated the test suite for new or updated code as appropriate
• I've updated documentation (JSDoc, Markdown, etc.) for new or updated code as appropriate
• I've highlighted breaking changes using the "BREAKING" category above as appropriate

[OGPoyraz]

LGTM