add the lattice code
add the lattice files to the project
move vector part to utility and move all the parameter to convention.h
finish the head file for lattice
add the vector test and site test
new scheme for yuan
Merge branch 'master' into yuan/dev
merge from master and pass the test for vector and site
delete the cout in Test_Vector
change the system size
add Lattice Plot and tests
add description to GetSite and PlotLattice