* Remove proposals for creating deposit and withdrawal objects, strenghten evaluator checks
* Only active SON can create the object
* Only expected SON can confirm the transaction
* Transaction must be initiated (paid) by SON account owner (SON account given in operation)
* Transaction confirmation must contain exactly the same data as existing object
* Mirror SON owner account weights from son-account.active.account_auths to active SONs
* Fix duplicated typedef, peerplays_sidechain::sidechain_type to chain::sidechain_type
* Add missing serialized field
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