Jump Drive Enhanced

Adds a "second level" Jump Drive tech with a shorter windup time. Why make this? Because Psi Jump Drive is strictly better than regular Jump Drive, being the same except for 50% greater range. This benefits Spiritualists greatly. The new Accelerated Jump Drive this mod adds is tied to a technology that Materialists will have an easier time getting. While Psi Jump Drive still wins on range, Accelerated Jump Drive winds up in half the time (7. 5 days vs. 15 days). Warning: Have not really tested this much. Please let me know how it works. It should show up pretty readily for Materialist empires that have original-recipe Jump Drives (a prereq) and an engineering researcher with the usual uber-traits (Curator, Spark of Genius, Maniacal).