[Freeciv-Dev] (PR#4465) a government_iterate macro

["Jason Short" <jdorje@xxxxxxxxxxxxxxxxxxxxx>]

We have iterators for everything else; why not governments types too? 
It makes things slightly more readible and less error-prone.

As a side effect I moved the government index initialization in with the
allocation, since the index values may be used outside of
get_government_from_name.  In theory we should probably always pass
around government pointers instead of IDs, though.

jason

government_iterate.diff
Description: government_iterate.diff