Running Anura3D on large Hardrives

[WaveHello]

The condition that checks if there is enough space on your hard drive to run a model causes an integer value to overflow if the hard drive is too large. The problem happens in WriteResultData.FOR.

[WaveHello]

Added a condition that forces the float value down to the maximum value of the integer. Could have also used a larger integer type.

! int has max value of 2147483647. Check that the available space isn't greater than 2147483647 * 1024 bytes
        if (I8_Total >  2147483647d0 * 1024d0) then
          I8_Total = 2147483647 * 1024
        endif
        
        kBSpace = nint(I8_Total/1024d0**1)
        RETURN
      else
        kBSpace = -1
      end if