feat(results): add JSON output, integrate structured data parser for tool result output content to standardize the aggregated results

[scrthq]

This issue tracks the work surrounding the parsing of ASH tooling results into a standardized, schema driven data format. This will become the intermediary language for ASH output that downstream output formats can be generated from, e.g. JUnitXML for better CI integrations, ASFF for Amazon Security Hub, SARIF, OCSF, etc.