Add impl of operator<< into VectorSet header
Add impl of operator<< into VectorSet header

briadam/queso,briadam/queso,roystgnr/queso,roystgnr/queso,briadam/queso,briadam/queso,roystgnr/queso,roystgnr/queso,briadam/queso,roystgnr/queso,roystgnr/queso