[0.1.12] Attack, Wall Slide, Wall Jump, Double Jump mechanics

Added

• Add player extra animations:
  • wall-slide animation
  • double-jump animation
  • attack animation
• Add player new mechanics:
  • Slide by the wall (wall slide)
  • Double jump
  • Jump from the wall (wall-jump)
  • Attack the enemies
• Add a side sensor which handles the right and left sides for the player.
  It helps to understand that the player has any contact on the sides.
  For example, it is used to track enemies on attack or walls on wall_slide
• Add the textures.ron file, which contains the whole game textures for the game.
  All player states and animations for it. Sizes, items in a sprite sheet, and so on.
  The same logic for the enemies and tutorials.

Changed

• Move all shared components into the common/components file. Made the main.rs file less and more readable.

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