Feature Request: Parse numbers as strings

When working with various counterparties dealing with monetary systems, we found that, quite often than not, we'd recieve json strings like [1.2345] instead of ["1.2345"]. If we parse that as a double, then we might loose precisions in some cases. In order to preserve precision, we have to parse that number as a string. rapidjson offers a solution by providing kParseNumbersAsStringsFlag: https://rapidjson.org/namespacerapidjson.html#a81379eb4e94a0386d71d15fda882ebc9a13981c0b803803f59d7a01aef3dfc987. Interesting enough, Python standard json library also offers the capability to parse numbers as strings:
https://docs.python.org/3/library/json.html#json.load (see parse_float and parse_int parameters).
We are looking into migrating to boost json library. Parsing numbers as strings is a key thing for us to preserve monetary precision. Thank you.