Fix Makefile to create a correct zip archive usable by QGIS
Created by: lbartoletti
Makefile doesn't create a correct zip to install it from QGIS. There is no root "QGeoloGIS"
@mhugo I suggest to deploy a clean package to QGIS3 plugin path and zip this directory. So the workflow will be make deploy and make zip (was before make zip and make deploy)