add rollback support

[srene]

we need to modify existing rollback command to add rollback feature with the option of keeping blocks from store (if we want to rollback but reapply same blocks).

[mtsitrin]

in what cases this is useful?

[srene]

rollback when forking without having to sync from 0

[mtsitrin]

in which cases u'll want to apply same blocks after hard fork?
hard fork usually will change something in the state/sequencers
are u sure block H+1 will be compatible after hard fork?

[danwt]

You mean remove blocks Sergi?

[danwt]

dymensionxyz/dymint#1299