Updated Windows lib dir to include dlls

Author: Simon Hofmann

lib/dirs.js

@@ -10,7 +10,7 @@ const rootDir = `node_modules/@nut-tree/opencv-build-${process.platform}`
 const opencvRoot = join(rootDir, 'opencv');
 const opencvBuild = join(opencvRoot, 'build');
 const opencvInclude = join(opencvBuild, 'include');
-const opencvLibDir = isWin() ? join(opencvBuild, 'lib/Release') : join(opencvBuild, 'lib');
+const opencvLibDir = isWin() ? join(opencvBuild, 'bin/Release') : join(opencvBuild, 'lib');
 const opencvBinDir = isWin() ? join(opencvBuild, 'bin/Release') : join(opencvBuild, 'bin');
 
 module.exports = {