Alpha 10 - Added Inertia

Added Inertia like mechanic, explained as following:

• certain moves generate inertia (air dash moves mostly):
  
  • air dash
  • ax weak air dash
  • brass knuckles weak air dash
  • brass knuckles strong air dash
  • colt air dash move
  • colt block move
  • cane dash weak air move
• With inertia moves, these generate some inertia but if (Jump cancel + direction) enhances inertia
• regular moves will carry inertia with them if preceded by inertia generating move
• Certain moves will reverse inertia (magnetism):
  
  • colt shoot (2nd and beyond)
  • demon gun normal shot
  • block weak air brass knuckles (fire waves)
  • block heavy ax move (throw out ax)