Add IntelliJ files at .gitignore file
Merge pull request #811 from teruyukimorimura/CONNECT

Add IntelliJ files at .gitignore file
Merge branch 'CONNECT' of github.com:CONNECT-Solution/CONNECT into CONNECT
Merge commit '88320e8119239ef9b4e3cd98bbe68c7093229fbf' into CONNECT
Merge commit '113b07672b4fbfbab16673984aa38aeb93ae41ba' into CONNECT
Merge commit '9b0642e5a0befc5307711ed39a86a8e5f6087c80' into CONNECT
Merge commit '92e07dd6e2e3bebe036f40ccdc67bc5535cde2bc' into CONNECT
Merge commit '0dc7f6436738d57d08a97d93b8220f1cfa9d7e27' into CONNECT
Merge commit 'a628af391699eadf7302063ede52e1bc7eb501b5' into CONNECT
Merge commit '8014f410594a4d6c17cddb371bc7ad392fca21f2' into CONNECT