User 0x${string} types throughout relay

[iamacook]

Summary

This increases the type strictness throughout the LimitAddressesMapper methods now that the relevant schemas are in place, as well as updates the associated tests.

[coveralls]

Pull Request Test Coverage Report for Build 8661480916

Details

• 2 of 2 (100.0%) changed or added relevant lines in 1 file are covered.
• 3 unchanged lines in 1 file lost coverage.
• Overall coverage decreased (-0.05%) to 92.982%

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Files with Coverage Reduction	New Missed Lines	%
src/routes/transactions/entities/tests/human-description.builder.ts	3	60.0%

Totals
Change from base Build 8659994084:	-0.05%
Covered Lines:	6758
Relevant Lines:	7014

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💛 - Coveralls