Wp 5782/fix near token enablement validation

[SimonVutovB]

Summary

Added token enablement validation and tests

Changes

• Inside, verifyTransaction in near.ts of sdk-coin-near, validate the txHex is a valid token enablement transaction for the specified token and does not have additional transactions embedded.

TICKET: WP-5782

[mtexeira-simtlix]

A few changes requested but you got a general first idea, good job! let me know if you need further clarification on any of the mentioned points @SimonVutovB

Thanks!

[mtexeira-simtlix]

@SimonVutovB for this issue that you're getting on the CI/CD steps, just rebase master since your dep versions are out of date:

[mohammadalfaiyazbitgo]

add a unit test to show sendTokenEnablements throws an error when you mock a response with a spoofed TxHex. Otherwise lgtm.

[mohammadalfaiyazbitgo]

please add a test case showcasing sendAccountConsolidations fails when a spoofed txHex is returned in the response.

[mohammadalfaiyazbitgo]

Can we add a test that shows a spoofed tx from platform will be rejected, similar to HBAR's?

[balakrishna507]

i'll also request a review from the coin owners.

[FloBitGo]

Removed myself from the reviewers, please add the web-experience team as a reviewer once this is ready again and you need a code review from us as an owner.

[mohammadalfaiyazbitgo]

I think changes are getting there, I tested this locally and transactions are being verified but we need to write a more comprehensive unit test.