Some people experienced a slowdown in nitls and nitpick since the last changes in the loader.
The culprit where mostly expensive services on strings and filepaths. see #1736
This PR improves the current state of affairs by using less expensive services or rearrange them.
For `time nitls -pt ../contrib/ ../lib ../examples/`
Before:
* real 0m2.159s
* user 0m1.840s
* sys 0m0.288s
After:
* real 0m0.545s (-75%)
* user 0m0.352s (-81%)
* sys 0m0.172s
Pull-Request: #1737
Reviewed-by: Alexis Laferrière <alexis.laf@xymus.net>