Kostas DeLazaris, jobless for 10 months, shares an abandoned house with two Greek women and a family of Bangladeshis.Credit...Eirini Vourloumis for The New York Times ATHENS — His face contorted with anguish, Anargyros D. recounted how he had lost everything in the aftermath of the Greek economic collapse — the food-processing factory founded by his father 30 years ago, his house, his car, his Rol