Feat: overload pow for tokens

mapytex/calculus/API/tokens/token.py

@@ -238,6 +238,28 @@ class Token(object):
         """
         return self._operate(other, "/")
 
+    def __pow__(self, other):
+        """ Token powered by an other
+
+        :example:
+        >>> from .number import Integer 
+        >>> a = Integer(3)
+        >>> b = Integer(7)
+        >>> c = a ** b
+        >>> c
+        <Integer 2187>
+        >>> c = a ** 7
+        >>> c
+        <Integer 2187>
+        >>> from .number import Decimal 
+        >>> a = Decimal('2.3')
+        >>> c = a ** 2
+        >>> c
+        <Decimal 5.29>
+
+    """
+        return self._operate(other, "^")
+
 
     def _roperate(self, other, operation):
         """ Make a operation between 2 Tokens """