-changed the name of the piece spawned by necrocyst in the entities2.xml to avoid confusion if you are trying to spawn necrocyst with the debug console
-spawning any part of necrocyst with debug console now works correctly

-Necrocysts are not immune to status effects anymore, but if one is affected by slow or freeze status, the other one will stop and wait until the affected one recovers itself, to avoid desync, then do the big jump attack to fix their positions.
-Necrocyst affected by slow or freeze status or waiting for the other to recover is now resistance to damage

-necrocyst while splitted are immune to status that affect velocity or make then freeze

-a change to the message that appears in-game if you are not using the custom stage api mod

added the necessary files to make this boss appears in the basement renovator program