Feat(core): add power attribut to MOPolynomial

mapytex/calculus/core/MO/polynomial.py

@@ -85,6 +85,10 @@ class MOpolynomial(MO):
         """
         return max(self._coefs.keys())
 
+    @property
+    def power(self):
+        return self.degree
+
     @property
     def coefficients(self):
         return self._coefs