[Feature Request] Promises or raw string support

[mgrybyk]

Actual Behavior

const json2 = csvToJson.fieldDelimiter(',').getJsonFromCsv(sourceReportDir).

getJsonFromCsv uses synchronous file API.

Description

The synchronous API is not suitable for modern Promise apps.

Introduce Promise API or let users read files on their own and allow passing raw string.

Specifications

• Version: 2.46.0