compare the data with old code, fix the coeffecients
Merge branch 'test/pr-2'

Conflicts:
	program/G0_t.dat
	program/G_omega.dat
	program/Sigma_omega.dat
	program/Sigma_t.dat
	program/W_omega.dat
	program/main.f90
	program/self_consistent.f90
	program/test_pr2.f90
	program/vrbls_mc.mod
delete test files