Add Rep Goal Progression mechanism

[d093w1z]

I would love to have an inbuilt system for Rep Goal mechanism.

The idea stems from a book named Massive Iron: The Rep Goal System by Steve Shaw

The system works to help increase strength and supports progressive overload.

P.S.: Thank you for this amazing app, this app is great in all aspects for my personal use.

[d093w1z]

This feature constitutes a mechanism through which the programs templates change their weights automatically depending on previous training history. So this will require rework of the program feature.