Add IntersectionSubset header file
Add IntersectionSubset header file

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