[add] & [remove]: Add or Remove Stakes

When you're ready to increase your stake in a particular Brain or wish to redistribute your investments, the add subcommand allows you to allocate additional BASED tokens easily:

$ basedcli stake add
Enter wallet name (default): myMasterWallet
Enter computekey name (default): myPowerComputeKey
Enter amount to stake: 100

Conversely, should you decide to reduce your stake or liquidate it entirely for flexibility or re-strategizing, the remove subcommand can be used to withdraw stakes:

$ basedcli stake remove
Enter wallet name (default): myMasterWallet
Enter amount to remove from stake or 'all': 50

The remove action should prompt a confirmation before proceeding to ensure that you are aware of the changes being made to your stakes.