[FEATURE] allow full liquidation of CDP outside of market hours

[ferencdg]

Problem definition
currently if I have a CDP that I want to fully liquidate it (burn all outstanding mAssets and withdraw 100% of the collateral), then I can only do that during market hours. I understand that if it was just 50% liquidation, then we need the mAsset oracle (to check in the withdraw function that the minimum collateral ratio still holds), but for full liquidation I don't see any reason for contacting the mAsset oracle.

Feature specification

Additional context