Revert "Remove .settings folder"

This reverts commit 2fa49bf8ff8dbd8a2fae34db2cc2a06202f7a8bf.
Revert "Delete .project"

This reverts commit 57faa5f776255fcc25fb553310e195b8c18df0d5.
Revert "Delete .classpath"

This reverts commit f9b8ec9b09705779fac3670ab518e71d00b2fdc2.