[POC]: Passkey support

[aramikm]

Goal

The goal of this PR is to show the changes necessary to make passkeys work in Frequency

SHOULD NOT GET MERGED

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 0% with 35 lines in your changes are missing coverage. Please review.

Files	Coverage Δ
pallets/frequency-tx-payment/src/lib.rs	74.23% <0.00%> (-8.65%)	:arrow_down:
pallets/frequency-tx-payment/src/types.rs	0.00% <0.00%> (ø)