The files netlist_partitioning and layout_control now compile

	*Use int types instead of floats
	*Still need the min-cut keep-order algorithm
	*Need to modify the way we represent the circuit (more flexible, adapt the IO to int type)
	*Need to write the analytical placement part
Complete analytical and IO

Analytical is simple and somewhat messy
Positions in circuit description are integer; FP is reserved to the CG method in symm_matrix.hxx
Next step is to rewrite the main