Geometry Operations Enhancement (#122)

* updating exclusion domain
- update sample/ is_inside
- create tests

* difference fixes
- random iteration list for sample

* created Intersection

* created a Difference domain

* unittest

* docstrings and minor fixes

* Refacotring Geometries
- added OperationInterface
- redid test cases
- edited Union, Intersect, Exclusion, and Difference
to inherit from OperationInterface
- simplified Union, Intersect, Exclusion, and Difference

* rm lighting logs

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Co-authored-by: Dario Coscia <dariocoscia@cli-10-110-16-239.WIFIeduroamSTUD.units.it>

pina/geometry/__init__.py

@@ -2,11 +2,18 @@ __all__ = [
     'Location',
     'CartesianDomain',
     'EllipsoidDomain',
-    'Union'
+    'Union',
+    'Intersection',
+    'Exclusion',
+    'Difference',
+    'OperationInterface'
 ]
 
 from .location import Location
 from .cartesian import CartesianDomain
 from .ellipsoid import EllipsoidDomain
-from .difference_domain import Difference
+from .exclusion_domain import Exclusion
+from .intersection_domain import Intersection
 from .union_domain import Union
+from .difference_domain import Difference
+from .operation_interface import OperationInterface