feat: added a pipeline function for multi-stage transformers

[MayukhChakrabortyDX]

This feature enables developers to easily add multiple transformations in a single string, variables, signals, or any other source of inputs in form of string.

The pipeline can be cached, or pre-built to behave similarly for any other set of strings and inputs.

[cokolwiekpl]

The functionality looks great and could be very useful, as it enables the effective use of our other transformation methods. The only thing worth adding is runtime validation to check whether each function in the pipe actually returns a string. This will protect against null and undefined values in the input data.