Add more language templates (C++, C#, Ruby, PHP, TypeScript, Swift)

gitignore_generator/templates/languages/ruby.gitignore

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+# rvm managed version files
+.ruby-version
+.ruby-gemset
+
+# bundler
+.bundle
+vendor/bundle/
+
+# default log directory
+log/*.log
+
+# default tmp directory
+tmp/
+
+# minitest/ci reports
+coverage/
+report/
+
+# gem artifacts
+*.gem
+
+# rbenv version file
+.rbenv-version
+
+# jekyll
+_site/
+.sass-cache/
+
+# Rails
+/tmp/
+log/*.log
+tmp/**/*
+!.gitkeep
+.db/*.sqlite3
+.db/*.sqlite3-journal
+*.sqlite3
+
+# OS
+.DS_Store
+.DS_Store?
+._*
+.Spotlight-V100
+.Trashes
+ehthumbs.db
+Thumbs.db
+
+# IDE
+.vscode/
+.idea/
+*.swp
+*.swo
+*~
+
+# Misc
+.bundle
+vendor