refactor: make address codec public

[tac0turtle]

Description

ref #13140

make address codec on auth public

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[tac0turtle]

@aaronc for validadator operator and consensus key we would expand the interface or make a specific validator codec for both.

[julienrbrt]

lgtm, but where is it supposed to be used? Shouldn't the expected keepers be updated where needed?

[tac0turtle]

lgtm, but where is it supposed to be used? Shouldn't the expected keepers be updated where needed?

it will be passed into other modules, im already using it in circuit, and ill add it to others. I didnt want to do it all at once. Its not used anywhere currently cause everywhere is using the global