Add test and docs for rectangular horizontal stabilizer

docs/Components/Aerodynamic/RectangularHorizontalStabilizer.md

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+## RectangularHorizontalStabilizer
+This class is responsible for creating a rectangular horizontal stabilizer type component. For this, it is necessary to pass as parameters the position and the angle in relation to the parent component, as well as the chord and span of the rectangular horizontal stabilizer.
+```python
+from vec import Vector2
+import math
+import pytest
+from adr.Components.Aerodynamic import RectangularHorizontalStabilizer
+
+rectangular_horizontal_stabilizer = RectangularHorizontalStabilizer(
+    name='rectangular_horizontal_stabilizer',
+    relative_position=Vector2(x=-0.7, y=0.2),
+    relative_angle=math.radians(0),
+    mass=0.14,
+    span=0.15,
+    chord=0.20
+)
+
+print(rectangular_horizontal_stabilizer.name)
+>>> rectangular_horizontal_stabilizer
+
+print(rectangular_horizontal_stabilizer.type)
+>>> horizontal_stabilizer
+
+print(rectangular_horizontal_stabilizer.mass)
+>>> 0.14
+
+print(rectangular_horizontal_stabilizer.span)
+>>> 0.15
+
+print(rectangular_horizontal_stabilizer.chord)
+>>> 0.2
+```

tests/Components/test_Aerodynamic.py

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+import attr
+from vec import Vector2
+import math
+import numpy.testing as npt
+import pytest
+from adr.Components.Aerodynamic import RectangularHorizontalStabilizer
+
+
+@pytest.fixture
+def rectangular_horizontal_stabilizer():
+    rectangular_horizontal_stabilizer = RectangularHorizontalStabilizer(
+        name='rectangular_horizontal_stabilizer',
+        relative_position=Vector2(x=-0.7, y=0.2),
+        relative_angle=math.radians(0),
+        mass=0.15,
+        span=0.15,
+        chord=0.20
+    )
+    return rectangular_horizontal_stabilizer
+
+
+def test_rectangular_aerodynamic_stabilizer(rectangular_horizontal_stabilizer):
+    assert (rectangular_horizontal_stabilizer.type == 'horizontal_stabilizer')
+    assert (rectangular_horizontal_stabilizer.name ==
+            'rectangular_horizontal_stabilizer')
+    assert (rectangular_horizontal_stabilizer.span == 0.15)
+    assert (rectangular_horizontal_stabilizer.chord == 0.20)
+    assert (rectangular_horizontal_stabilizer.mass == 0.15)