NaN bug fix

generalist now requires 2 guns to unlock
  active cooling 18->20% fire speed increase per gun
  arsenal 12->13% damage increase per gun
futures exchange 4.3->4.5% duplication on cancel
perimeter defense 7->6% harm reduction per bot
unified field theory no longer gets bonus rerolls, instead it triples the frequency of field tech
  removed tensor field
meta-analysis gives 3->1 research after choosing JUNK

plasma ball moves faster 7->10

bug fixes
JUNK tech density removed
  it was causing the NaN bug

js/bullet.js

@@ -271,7 +271,7 @@ const b = {
     setFireCD() {
         b.fireCDscale = tech.fireRate * tech.slowFire * tech.researchHaste * tech.aimDamage
         if (tech.isFastTime) b.fireCDscale *= 0.5
-        if (tech.isFireRateForGuns) b.fireCDscale *= Math.pow(0.82, b.inventory.length)
+        if (tech.isFireRateForGuns) b.fireCDscale *= Math.pow(0.8, b.inventory.length)
         if (tech.isFireMoveLock) b.fireCDscale *= 0.5
     },
     fireAttributes(dir, rotate = true) {