Added .gitignore template from slimer repo

refs #9441

1ae82d4325/packages/generator-slimer/generators/gitroot/templates/gitignore.tpl

.gitignore

@@ -1,6 +1,76 @@
-b-cov
-*.seed
+# Node template
+
+# Logs
+logs
 *.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# Runtime data
+pids
+*.pid
+*.seed
+*.pid.lock
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+
+# nyc test coverage
+.nyc_output
+
+# Grunt intermediate storage (http://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# Bower dependency directory (https://bower.io/)
+bower_components
+
+# node-waf configuration
+.lock-wscript
+
+# Compiled binary addons (https://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directories
+node_modules/
+jspm_packages/
+
+# Typescript v1 declaration files
+typings/
+
+# Optional npm cache directory
+.npm
+
+# Optional eslint cache
+.eslintcache
+
+# Optional REPL history
+.node_repl_history
+
+# Output of 'npm pack'
+*.tgz
+
+# Yarn Integrity file
+.yarn-integrity
+
+# dotenv environment variables file
+.env
+
+# IDE
+.idea/*
+*.iml
+*.sublime-*
+.vscode/*
+
+# OSX
+.DS_Store
+
+# Custom ignore starts here
+
+b-cov
 *.csv
 *.dat
 *.out