Obviate the need for autoload.php in establishing library base path (#65)

* Obviate the need for autoload.php in establishing library base path

* Avoid platform specific delimiters and .. references

---------

Co-authored-by: Tim Whitlock <[email protected]>

Author: timwhitlock

src/Utils/Helpers.php

@@ -168,10 +168,6 @@ function getBoundingBox(array $box, bool $asInteger): array
  */
 function basePath(string $dir = ""): string
 {
-    $loader = require 'vendor/autoload.php';
-
-    $transformersClass = $loader->findFile(Transformers::class);
-
-    return joinPaths(dirname($transformersClass, 2), $dir);
+    return joinPaths(dirname(__DIR__,2), $dir);
 }