[pkg] add trove classifiers

__pkginfo__.py

@@ -18,6 +18,15 @@ __depends__ =  {'cubicweb': '>= 3.22.0',
                 }
 __recommends__ = {}
 
+classifiers = [
+    'Environment :: Web Environment',
+    'Framework :: CubicWeb',
+    'Programming Language :: Python',
+    'Programming Language :: Python :: 3',
+    'Programming Language :: JavaScript',
+    'Topic :: Scientific/Engineering :: GIS',
+    'Topic :: Database',
+]
 
 from os import listdir as _listdir
 from os.path import join, isdir