Add ability to pass in custom metadata for wow token creation

[erikreppel]

What changed? Why?

Currently all tokens created on wow through this tool have the same token metadata, allow passing custom metadata so people can override things like token image

Qualified Impact

works case it'd break the tool, seems unlikely

[cb-heimdall]

✅ Heimdall Review Status

Requirement	Status	More Info
Reviews	✅ 1/1	Denominator calculation Show calculation 1 if user is bot 0 1 if user is external 0 From .codeflow.yml 1 Additional review requirements Show calculation Max 0 0 From CODEOWNERS 0 Global minimum 0 Max 1 1 1 if commit is unverified 0 Sum 1

[erikreppel]

@John-peterson-coinbase I think I got all your PR feedback!

[John-peterson-coinbase]

@erikreppel - LGTM!

We require the commits to be signed for them to be merged to master. https://docs.github.com/en/authentication/managing-commit-signature-verification/about-commit-signature-verification

Please follow the linked instructions to set up GPG signing and then squash the commits into 1 signed commit.

I can help with merging once the commits are signed!

[erikreppel]

@John-peterson-coinbase signed