update ignorefile

update ignorefile
delete intellij file

delete intellij file
add mainframe

add mainframe
Revert "add mainframe"

This reverts commit 3e1e4af9384cf67ddeb986ab51ccef832dbf8def.
Revert "Revert "add mainframe""

This reverts commit e0b827e4eddefce8b7bb32909c2869dedb6f078b.