(FACT-3474) Update facter schema, CONTRIBUTING.md, and add acceptance test to verify facts conform to schema#2746

joshcooper merged 1 commit intopuppetlabs:mainpuppetlabs/facter:mainfrom

AriaXLi:FACT-3474/fact_schemaAriaXLi/facter:FACT-3474/fact_schemaCopy head branch name to clipboard