ISIS Build Excessive Warnings

[acpaquette]

ISIS version(s) affected: dev

Description
When building ISIS using C++ 11 and greater, ISIS produces an excessive amount of warnings due to linking against process objects that use binary_function and unary_function

These two class definitions have been deprecated in C++ 11 and removed as of C++ 17. This will be a problem in the future and squashing them sooner rather than later would be ideal.

How to reproduce
Follow the ISIS build instructions using C++ 11 or greater

Possible Solution
There are some replacements for this but none stand out to me as an easy, just replace binary_function and unary_function with some new thing. It seems like std::bind might be the easiest replacement but result in some refactoring in the ISIS process classes and various functr uses.