Restructured Directories

Added to "Section 1" folder
Renamed projects
from "Name - id (X.X)"
to "X.X - Name (id)"
Renamed Palindromic Squares project

USACO - Section 1.2 (palsquare)
From "Palindromic Squares - palsquare (1.2)"
To "1.2 - Palindromic Squares (palsquare)"
Solved and restructured

Fixed projects
Solved USACO Training - Prime Cryptarithm (1.3)