planetesimals broadcast

tech: inductive coupling - regen is increased by 500%, but you only regen when crouched

tech gun turret gives 55% -> 60% harm reduction
  also I fixed a bug where it was giving 45% not 55%

old tech inductive coupling is renamed: permittivity
permittivity gives 3 -> 4 max energy per unused power up
1st ionization energy gives 6 -> 7 max energy per heal

tech expansion - no longer costs energy to expand standing wave field

JUNK tech planetesimals now can spawn tech in n-gon
  or kill the player in n-gon

js/powerup.js

@@ -443,7 +443,7 @@ const powerUps = {
             }
 
             if (tech.healGiveMaxEnergy) {
-                tech.healMaxEnergyBonus += 0.06
+                tech.healMaxEnergyBonus += 0.07
                 m.setMaxEnergy();
             }
         },