Add HyperledgerComposer.gitignore template

"Hyperledger Composer is a set of collaboration tools for building blockchain business networks that make it simple and fast for business owners and developers to create smart contracts and blockchain applications to solve business problems"
https://www.hyperledger.org/projects/composer

Composer projects are node modules so this template is a copy of
Node.gitignore with a couple of extra entries:

*.bna
banana files are deployment artifacts created using the
'composer archive create' command
https://hyperledger.github.io/composer/latest/reference/composer.archive.create.html

*.card
business network card (ID card) files provide all the required details
to connect to a blockchain network, including private cryptographic
material
https://hyperledger.github.io/composer/latest/playground/id-cards-playground

HyperledgerComposer.gitignore

@@ -0,0 +1,65 @@
+# 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
+
+# next.js build output
+.next
+
+# Output of Hyperledger 'composer' tools
+*.bna
+*.card