feat(rust): created 0572 problem solution

[nomorechokedboy]

• File(s) Modified: 0572-subtree-of-another-tree.rs
• Language(s) Used: Rust
• Submission URL: https://leetcode.com/problems/subtree-of-another-tree/submissions/923518390/

Important

Please make sure the file name is lowercase and a duplicate file does not already exist before merging.