Add fraction size parameter to currencyFilter

[genuinefafa]

feat(filter): currencyFilter and numberFilter should have same fraction behavior

currencyFilter now accepts fractionSize so it behaves "similar" to a numberFilter, it even uses locale patterns by default.

[mary-poppins]

Thanks for the PR! Please check the items below to help us merge this faster. See the contributing docs for more information.

• Uses the issue template (#7582)

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Then, update the pull request with git push -f.

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[mary-poppins]

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[genuinefafa]

I just sent the email with the signed CLA for my company.
The company's name is Soluciones 3f SRL.

I'm guessing that's it. Please, @mary-poppins, let me know if I need to do something else.

[Narretz]

I updated the title to reflect the changes

[petebacondarwin]

I think this could be combined with #5672

[genuinefafa]

Yes @petebacondarwin, you might be right. I think I should also update the tests... I'll do it soon!

"My" fix is much "easier", since I was trying to reproduce the behavior of the numberFormat, #5672 does some aditional behavior, which I dont entirely agree with.

[park9140]

If you look at the code, #5672 does not 'extend' behavior. It make code that was already there doing nothing actually get run. I just made the original intent not broken.

[park9140]

Also I totally already did this and wrote tests for it in #5674.

[petebacondarwin]

@park9140 you are right. I didn't see that pr. Closing this as a duplicate of #5674

[genuinefafa]

Let's hope angular folks add the feature! ;) @park9140 @petebacondarwin 👯