deleted somethings
added if selector
added greedy
added grasp
added multi-boot
added scope search
added somethings to swich
added constuctor and destructor declaration
added somethings
added table of distances
added centroid::clear
added centroid::add
moved function
update somethings
defined kmeans
added getter of kmeans
fixed error in Kmeans
changed a little thing
added more fileinput and modified toS of kmeans
added to windows