Operator to detect language in a Video file

[aatmanvaidya]

Operators are core components of Feluda, they are modules that help us analyse media items - text, image, video, audio etc. All the code for operators can be found at src/core/operators

The task is to create a Operator that can detect language in a Video media item. This is an open ended issue, you will have to investigate on what methods to do this are best and effective.
For now the operator should be able to identify/detect the English, Hindi, Telugu and Tamil languages.

Expected Outcome

• Write an operator, profile it for RAM and CPU usage. A key outcome should be that the operator should have stabilised RAM usage. Some methods on profiling have been documented on the Wiki here.
• Write a test for the operator
• Document the operator on the Wiki