Create synthetic weather-forecasting

[Rishiram20757]

Describe your change:

• [

• [x] Add an algorithm?

i am merging my weather forcast using machine learning , it uses future synthetic weather datas for forecasting which gives another angle to normal forecasting which at end will help if we merge both of prediction for analysing

Checklist:

• [ yes] I have read CONTRIBUTING.md.
• [ yes] This pull request is all my own work -- I have not plagiarized.
• [ yes] I know that pull requests will not be merged if they fail the automated tests.
• [ yes] This PR only changes one algorithm file. To ease review, please open separate PRs for separate algorithms.
• [ yes] All new Python files are placed inside an existing directory.
• [ yes] All filenames are in all lowercase characters with no spaces or dashes.
• [ yes] All functions and variable names follow Python naming conventions.
• [ yes] All function parameters and return values are annotated with Python type hints.
• [ yes] All functions have doctests that pass the automated testing.
• [ yes] All new algorithms include at least one URL that points to Wikipedia or another similar explanation.
• [ yes] If this pull request resolves one or more open issues then the description above includes the issue number(s) with a closing keyword: "Fixes #ISSUE-NUMBER".