Searches through all of the defined namespaces looking for a file.
Returns an array of all found locations for the defined file.

Example:

$locator->search('Config/Routes.php');
// Assuming PSR4 namespaces include foo and bar, might return:
[
'app/Modules/foo/Config/Routes.php',
'app/Modules/bar/Config/Routes.php',
]

@param string $path
@param string $ext

@return array