Element type Conversion and offset

We need a utility function `adaptToCallingConvention` that takes an mlir function `f`, a list of input tensor types, and a list of byte offsets, passed as an ArrayRef. adaptToCallingConvention should output a new mlir function.

This new function should call the original `f`. If the element types differ, it should perform casts to ensure the argument of type of the outer specification can be passed to `f`. Also, if the corresponding byte offset is non-zero, it should slice the argument such that the first byte passed to `f` is the corresponding offset number of bytes into the outer argument.

Code should be added to Utils.cpp and Utils.h