Add HL required files to project repo

[sappenin]

Hyperledger would like the following files to exist in all HL repos (see report here):

• notice-file-exists: not found: (NOTICE*) The NOTICE file is described in section 4.4 of the Apache License version 2.0. Its presence is not mandated by the license itself, but by ASF policy.
• license-file-exists: found (LICENSE)
• readme-file-exists: found (README.md)
• contributing-file-exists: found (CONTRIBUTING.md)
• code-of-conduct-file-exists: not found: (CODEOFCONDUCT*, CODE-OF-CONDUCT*, CODE_OF_CONDUCT*, .github/CODEOFCONDUCT*, .github/CODE-OF-CONDUCT*, .github/CODE_OF_CONDUCT*)
• changelog-file-exists: not found: (CHANGELOG*)
• security-file-exists: found (SECURITY.md)
• support-file-exists: not found: ({docs/,.github/,}SUPPORT*)
• readme-references-license: File README.md doesn't contain license
• binaries-not-present: Excluded file type doesn't exist (/*.exe,/*.dll,!node_modules/**)
• test-directory-exists: not found: (**/test*, **/specs)
• integrates-with-ci: found (.circleci/config.yml)
• github-issue-template-exists: not found: (ISSUE_TEMPLATE*, .github/ISSUE_TEMPLATE*)
• github-pull-request-template-exists: not found: (PULL_REQUEST_TEMPLATE*, .github/PULL_REQUEST_TEMPLATE*)
• license-detectable-by-licensee: Licensee identified the license for project: Apache-2.0

[sappenin]

Also see #435