Add transactionMaxFee

[Boka44]

Description

Adding a transactionMaxFee option to the wallet config. This will be enforced in the signTransaction and sendTransaction functions.

Motivation and Context

We currently have a transferMaxFee check when calling transfer(), and are missing max fee checks on the other functions.

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

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