Add a bank :)

Hello, all, my idea is : a bank (like the title says) in a future update,
I was inspired update with the treasury , and why not go with this in mind that the bank is

Could you add a bank or can manually store a number of gold or black or purple elixirit 'Il be great :):heart:

Cordially, Condor02/Laoex

Being able to store resources in a place where other players cannot raid them would be terrible for the economy.