Rename Project Euler directories and other dependent changes (#3300)

* Rename all Project Euler directories:

Reason:
The change was done to maintain consistency throughout the directory
and to keep all directories in sorted order.

Due to the above change, some config files had to be modified:
'problem_22` -> `problem_022`

* Update scripts to pad zeroes in PE directories

project_euler/problem_022/sol2.py

@@ -0,0 +1,42 @@
+"""
+Name scores
+Problem 22
+
+Using names.txt (right click and 'Save Link/Target As...'), a 46K text file
+containing over five-thousand first names, begin by sorting it into
+alphabetical order. Then working out the alphabetical value for each name,
+multiply this value by its alphabetical position in the list to obtain a name
+score.
+
+For example, when the list is sorted into alphabetical order, COLIN, which is
+worth 3 + 15 + 12 + 9 + 14 = 53, is the 938th name in the list. So, COLIN would
+obtain a score of 938 × 53 = 49714.
+
+What is the total of all the name scores in the file?
+"""
+import os
+
+
+def solution():
+    """Returns the total of all the name scores in the file.
+
+    >>> solution()
+    871198282
+    """
+    total_sum = 0
+    temp_sum = 0
+    with open(os.path.dirname(__file__) + "/p022_names.txt") as file:
+        name = str(file.readlines()[0])
+        name = name.replace('"', "").split(",")
+
+    name.sort()
+    for i in range(len(name)):
+        for j in name[i]:
+            temp_sum += ord(j) - ord("A") + 1
+        total_sum += (i + 1) * temp_sum
+        temp_sum = 0
+    return total_sum
+
+
+if __name__ == "__main__":
+    print(solution())