sprint-4

What's Changed

• Added flake8 lint test to the CI job by @albertcrowley in #38
• Added test code coverage to utility scripts by @toddlees in #40
• Fixed tests to comply with flake8 by @toddlees in #41
• Updated F3X schema properties by @toddlees in #36
• Added JSON schema documentation link to the README by @mjtravers in #42
• Adds Contact Schemas by @toddlees in #43
• Added initial schema files for transaction types #44 by @mjtravers in #45
• Added dependency licence report by @albertcrowley in #39
• Added git-flow instructions to README by @mjtravers in #47
• Feature/22 pip package by @toddlees in #46
• Release/sprint 4 by @toddlees in #48

Full Changelog: sprint-3...sprint-4