Detecting Geometrical shapes In an Image

[simarpreetsingh-019]

Detecting Geometrical shapes In an Image using OpenCV and python.
Languages:
Python
OpenCV

Output:
Image

@disha2sinha has assigned me this issue in #93 , but I didn't have any issue reference to make a pull request, that's why I created this.
@disha2sinha @ankitdobhal please apply the appropriate labels to it. Again it can be considered as medium level script else your call.