Move impl of VectorSet out of header
Move impl of VectorSet out of header

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