fix: regard file extensions during path resolution (#133)

[aleclarson]

Originally during the file path resolution, file extensions were removed
without explicit reason. This commit changes the resolution logic to keep file
extensions, with the goal to add support for modern non-js extensions
like cjs. The change however keeps /xyz/index resolves as is as they
still should resolve to /xyz.

Refs 847d314

[jonaskello]

Thanks! :-)

[jonaskello]

Released in 3.13.0

[JiangWeixian]

Just curious about why remove extensions from path...

tsconfig-paths/src/try-path.ts

Lines 58 to 69 in 11b774d

	// Not sure why we don't just return the full found path?
	export function getStrippedPath(tryPath: TryPath): string {
	return tryPath.type === "index"
	? dirname(tryPath.path)
	: tryPath.type === "file"
	? tryPath.path
	: tryPath.type === "extension"
	? removeExtension(tryPath.path)
	: tryPath.type === "package"
	? tryPath.path
	: exhaustiveTypeException(tryPath.type);
	}