Merge branch 'retrieve' into release/v0.1.4

Author: freddieknets

examples/results.py

@@ -0,0 +1,8 @@
+import xboinc as xb
+
+list_of_succeeded_jobs = []
+user='ddicroce'
+studyname='example_study'
+for jobname, new_particles in xb.RetrieveJobs(user=user, study=studyname):
+    print(jobname)
+    print(f"Particles: {new_particles.at_turn}")