Dora Grant DAO V4

In the contract `DoraChecker` the role `_owner` has authority over the functions: * setWhitelist() * freeze() * unFreeze() * slash() Any compromise to the `_owner` or access to the functions may allow a hacker to do the following: - put account to white list. The hacker could add his account to the white list which could allow him to get the slashed funds. - free or unfreeze user staking account. The hacker could use this authority to freeze user staking account and slash him. Or unfreeze bad accounts to let them get funds. - slash specific user staking account. The hacker could use this authority to slash some accounts and get their funds. --- In the contract `DoraChecker` the users on the `whitelist` have authority over the functions: * slashTo() Any compromise to the `whitelist` or access to the functions may allow a hacker to do the following: - get slashed funds. The hacker could use this authority to transfer slashed funds to any account. --- In the contract `StakingEntry` the role `_owner` has authority over the functions: * setAdmin() * addSigningKeys() Any compromise to the `_owner` or access to the functions may allow a hacker to do the following: - add signature information. The hacker could use this authority to forbidden specific accounts to use deposit function.