Add snake game and fix bugs for Windows compatibility

- Fixed curses issues on Windows
- Replaced / with // to avoid float errors
- Fixed typo: ACS_CKBOARD

Author: shipl1974

Games/snake_game2/README.md

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+# Snake Game
+
+This is a simple console-based **Snake** game written in Python.
+
+The game generates a snake which controled by ←↓↑→.  
+Your task is to reach the  π(or half π) and ovoid to hit the tail or the edge of the screen.
+
+If the snake hits the π(or half π),the snake will be longer and another π will appear,the game continues.  
+If the snake hit the tail or the edge of the screen, the game will exit and "give" you a error(Don't worry, this game doesn't have any problem).
+
+
+---
+
+## How to Run
+
+1. Make sure you have **Python 3** installed.
+
+2. Open a terminal and navigate to the folder where the script is located:
+   ```bash
+   cd snake_game2
+## Made by A (shipl1974, https:/github.com/shipl1974)

Games/snake_game2/snake_game2.py

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+# IF ERROR OF CURSOR THEN, Open CMD as Admin And TYPE-----> pip install windows-curses. please use CMD to run
+import random
+import curses
+
+s= curses.initscr()
+curses.curs_set(0)
+sh, sw = s.getmaxyx()
+w= curses.newwin(sh, sw, 0, 0)
+w.keypad(1)
+w.timeout(100)
+
+snk_x =sw//4
+snk_y= sh//2
+snake =[
+    [snk_y,snk_x],
+    [snk_y,snk_x-1],
+    [snk_y,snk_x-2]
+]
+
+food =[sh//2,sw//2]
+w.addch(food[0],food[1], curses.ACS_PI)
+
+key = curses.KEY_RIGHT
+
+
+while True:
+    next_key =w.getch()
+    key  = key if next_key == -1 else next_key
+    
+    if snake[0][0] in [0,sh] or snake[0][1] in [0, sw] or snake[0] in snake[1:]:
+        curses.endwin()
+        quit()
+        
+    new_head = [snake[0][0], snake[0][1]]
+    
+    if key == curses.KEY_DOWN:
+        new_head[0]+=1
+    if key == curses.KEY_UP:
+        new_head[0]-=1
+    if key == curses.KEY_LEFT:
+        new_head[1]-=1
+    if key == curses.KEY_RIGHT:
+        new_head[1]+=1
+    
+    
+    snake.insert(0, new_head)
+    
+    if snake[0] == food:
+        food =None
+        while food is None:
+            nf = [
+                random.randint(1,sh-1),
+                random.randint(1, sw-1)
+            ]
+            food = nf if nf not in  snake else None 
+        w.addch(food[0],food[1], curses.ACS_PI)
+    else:
+        tail =snake.pop()
+        w.addch(tail[0], tail[1], " ")
+        
+    w.addch(snake[0][0], snake[0][1], curses.ACS_CKBOARD)
+