Types refactor

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Refactor to remove the use of namespace in types.
Add cpu_usage_us, net_usage_words, parent, signatures to Action.
Add missing queryParams to get_links.

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I was also trying to look at the struct for get_creator of the eosio account since it returns differently from every other account.
trx_id is an empty string and creator is __self__ which is not a valid name type, but I couldn't figure out how to account for that in the Struct without making them both just strings.