No comparison of properties.

**Describe the bug**
No comparison of properties.

**To Reproduce**
```
import numpy as np
from deepdiff import DeepDiff
class A:
    def __init__(self, a):
        self.a = a
    @property
    def array(self):
        return np.random.random(2)

print(DeepDiff(A(1),A(1))
```


**Expected behavior**
Difference of properties.

No difference is reported.
