Side release buckle - optimized

I saw the original [buckle clips](https://www.thingiverse.com/thing:1074129) a while ago and as I found that the design is really nice I printed a couple of them. However I found that some things could be optimized, so I did it using blender. Below is a list of issues and improvements I made:
* **the clip detach itself when pulling hard on it**:
* the side locking is now improved with a kind of "fishing hook" mechanism (the lateral ends of the male are now like arrows that locks even better when pulling the parts apart)
* reduce the lateral clearance of the male part inside the female part, thus avoiding the male part to make a lateral bias angle with the female part
* **the strap slips in the buckle when there is a small angle between the strap and the buckle clip**:
* "compress" the back of the male and the female parts to force the strap to make a higher loop angle
* **one have to tune the scale of the parts to make the male part going into the female one**
* adjust the s