Moves the Rocket part recipe to assemblers so Processing units, Low density structure, and Rocket fuel can be inserted into rockets directly.

Allows adjustment of cost for both parts and rocket assembly. Default is the same as the base game 1 of each for parts and 50 parts for a rocket.

Rocket part stack size defaults to 1 and cannot be launched in a rocket. Stack size can be changed if desired, 1 gives a similar bot/belt density to the base game while 10 will give a similar chest density.

Productivity modules are now not allowed in rocket silos by default as adding another layer of productivity would significantly reduce rocket part cost in the late game. This can be turned on with a mod setting that also adds a new Technology that uses promethium science to increase rocket assembly productivity.