lib: add api to detect whether source-maps are enabled

Add `process.sourceMapsEnabled` to detect
whether source-maps are enabled.

Fixes: https://github.com/nodejs/node/issues/46304
PR-URL: https://github.com/nodejs/node/pull/46391
Reviewed-By: Chemi Atlow <chemi@atlow.co.il>

doc/api/process.md

@@ -3517,6 +3517,19 @@ throw an error.
 Using this function is mutually exclusive with using the deprecated
 [`domain`][] built-in module.
 
+## `process.sourceMapsEnabled`
+
+<!-- YAML
+added: REPLACEME
+-->
+
+> Stability: 1 - Experimental
+
+* {boolean}
+
+The `process.sourceMapsEnabled` property returns whether the
+[Source Map v3][Source Map] support for stack traces is enabled.
+
 ## `process.stderr`
 
 * {Stream}