Revert "Tweak base gitignore"

This reverts commit a02f93329b5bd89d061e47e1aa0dfd1957eab61a.
Revert "Remove most gitignores for now"

This reverts commit 65879d55e12c30d278dfa22a5ebfaa00b83fd4b9.
Revert "Merge deb/rpm dirs"

This reverts commit a2f9aaf707c02b6b5f547e91c1af7a6612a34d11.