Created problem_112.py in project_euler (#2532)

* Add files via upload

* Create __init__.py

* Update and rename project_euler/problem_112.py to project_euler/problem_112/sol1.py

* Update project_euler/problem_112/sol1.py

Co-authored-by: Dhruv <dhruvmanila@gmail.com>

* Update sol1.py

* Update sol1.py

* Update project_euler/problem_112/sol1.py

Co-authored-by: Du Yuanchao <shellhub.me@gmail.com>

* Update project_euler/problem_112/__init__.py

Co-authored-by: Du Yuanchao <shellhub.me@gmail.com>

* Update __init__.py

* Update __init__.py

* Update __init__.py

* delete __init__.py content

Co-authored-by: Dhruv <dhruvmanila@gmail.com>
Co-authored-by: Du Yuanchao <shellhub.me@gmail.com>