Optional display in Monet of the full PVz range

As required by RC, It would help to monitor the full range of the reconstructed PVz, to monitor the SMOG-to-pp vertices fraction.

This MR drops the double PVz histogram we had before (one for pp, one for SMOG), and instantiates it only once. For pp monitoring, only [-200, 200] is selected for displaying in histoyml

The following plot is obtained by running this branch on pp+pAr MEPs

Goes with https://gitlab.cern.ch/lhcb/histoyml/-/merge_requests/222

cc @chlucare @collinsp

configuration/python/AllenConf/primary_vertex_reconstruction.py

@@ -123,9 +123,7 @@ def make_pvs(velo_tracks,
         dev_multi_fit_vertices_t=pv_beamline_multi_fitter.
         dev_multi_fit_vertices_t,
         dev_number_of_multi_fit_vertices_t=pv_beamline_multi_fitter.
-        dev_number_of_multi_fit_vertices_t,
-        min_histo_smogpvz=zmin - 20.,
-        max_histo_smogpvz=SMOG2_pp_separation + 20.)
+        dev_number_of_multi_fit_vertices_t)
 
     return {
         "dev_number_of_zpeaks":