Atomic bomb now blasts water-filled craters into the terrain of Nauvis and Gleba. As well as heavy oil on Fulgora. Fork from mod by hsp9513 (https://mods.factorio.com/mod/NukeWell), updated to 2.1 and added support for Fulgora

For those who care about such things, water tiles will be created on any planet at or between pressures of 1000 and 2000. Oil will be made on planets at or between pressures of 500 and 900