Adds main function and core includes

- Main function added to the C file.
- Core includes added.
- Adds header file for constants.
- Adds math header to Eclipse project file.
Adds info display and formatting memory size

- Function to display the simulation information (i.e. number of
processors, cores per processor and distribution of memory) added.
- Function to display the memory in SI units added.
Adds int to string with 1000 comma sep function

- Function for converting (long long) integers to strings with thousand
comma separations added.
- PrintMemory function modified to make use of this function.