Transition from `nwp` to `nw`, `mtp` to `mt`, `MHp` to `MH`, etc. in the C API?

[krivit]

nwp made sense back when NetworkInitialize() returned a struct and it was up to the user to allocate the memory for storing it, so the following code made sense:

Network nw = NetworkInitialize(...);
subtroutine(&nw, ...)

with

void subroutine(Network *nwp, ...){
...
}

Nowadays, though, NetworkInitialize() allocates the struct and returns a pointer, so assigning to a Network never happens.

Same goes for others.

We can probably make a smooth transition with macros

#define nwp nw
#define mtp mt
#define MHp MH

etc.

Any thoughts?