feat(solutions): add is-valid-array-subsequence/python/function

challenges/is-valid-array-subsequence/solutions/python/function/README.md

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+# is-valid-array-subsequence/python/function
+
+Created by [@Divlo](https://github.com/Divlo) on 23 April 2022.

challenges/is-valid-array-subsequence/solutions/python/function/solution.py

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+from typing import List
+import sys
+
+input_values: List[str] = []
+for value in sys.stdin:
+    input_values.append(value.rstrip('\n'))
+
+
+def get_is_valid_subsequence(array: List, sequence: List):
+    index_to_check = 0
+    for index in range(len(array)):
+        if index_to_check < len(sequence) and array[index] == sequence[index_to_check]:
+            index_to_check += 1
+    return index_to_check == len(sequence)
+
+
+is_valid_subsequence = get_is_valid_subsequence(
+    input_values[0].split(' '), input_values[1].split(' '))
+print('true' if is_valid_subsequence else 'false')