Refactor getting memory usage a bit
I_GetFreeMem was split into two function, total being handled by I_GetTotalMem() Moved all of the platform specific code into a new file. Return a size_t to fix it returning 4GB on systems with > 4GB of memory
I_GetFreeMem was split into two function, total being handled by I_GetTotalMem() Moved all of the platform specific code into a new file. Return a size_t to fix it returning 4GB on systems with > 4GB of memory