feat: Add tests for laguide module

Author: Niraj Bajpai

tests/test_laguide.py

@@ -0,0 +1,7 @@
+import numpy as np
+from laguide import DotProduct
+
+def test_dot_product():
+    U = np.array([[1], [2], [3]])
+    V = np.array([[4], [5], [6]])
+    assert DotProduct(U, V) == 32.0