Introduced Eggs.

Every tamagotchi will spawn an egg, all the time(DEBUG)

egg.py

@@ -0,0 +1,21 @@
+#!/usr/bin/python
+# -*- coding: utf-8 -*-
+
+class Egg:
+    alive = True
+    age = 0
+    care = 100
+
+    def __init__(self):
+        self.alive = True
+        self.age = 0
+        self.care = 100
+
+    def step(self):
+        if self.alive:
+            if self.care >= 0:
+                age += 1
+            else:
+                self.alive = False
+
+