Add spruce lines for B2HPi0 with Dalitz pi0 decays

This MR add two new lines for B^+ \to K^+ \pi^0 and B^+ \to \pi^+ \pi^0 decays with \pi^0 \to e^+ e^- \gamma, based on the experience of reconstructing D^+ \to \pi^+ \pi^0 decays in the Charm group. We've seen that the yield per inv fb increased by a factor of 10 between Run2 and Run3 for \pi^0 \to e^+ e^- \gamma decays, therefore it might now be worth including this final state for the B^+ \to h^+ \pi^0 decays. The yield will be small due to the low efficiency, but the sample would be softer than the calorimeter \pi^0 approach.

The lines has been run over all events in the sprucing testing snippet and the bandwidth is as follows:

Line	Eff	Rate
BuToKpPi0_Dalitz	2/371018 = 0.0000054	0.41 Hz
BuToPipPi0_Dalitz	3/371018 = 0.0000081	0.61 Hz

file_size = 171k

b/w (GB/s) = input rate (75.49 kHz for this HLT2 output file) x 0.171 (MB) / 371018

b/w (GB/s) = 0.000035 GB/s = 35 (KB/s)

Hlt/Hlt2Conf/python/Hlt2Conf/lines/bnoc/bTohh.py

@@ -18,8 +18,8 @@ from GaudiKernel.SystemOfUnits import (
 )
 
 from Hlt2Conf.lines.bnoc.builders import b_builder, basic_builder
-from Hlt2Conf.lines.bnoc.utils import check_process
 from Hlt2Conf.lines.bnoc.builders.basic_builder import make_dalitz_pi0s
+from Hlt2Conf.lines.bnoc.utils import check_process
 
 ##############################################
 # Definition of BNOC bTohh lines:            #
@@ -66,16 +66,19 @@ def make_BuToPipPi0(process):
     )
     return line_alg
 
+
 @check_process
 def make_BuToKpPi0_Dalitz(process):
     kaons = basic_builder.make_soft_kaons(
         k_pidk_min=-0.5, p_min=2000 * MeV, pt_min=1000 * MeV, mipchi2_min=16
     )
-    dalitz_pi0s = make_dalitz_pi0s( p_min= 2000 * MeV,
-                                    pt_min=1000 * MeV,
-                                    gamma_is_not_H= 0.05,
-                                    gamma_is_photon= 0.2,
-                                    min_ipchi2= 16)
+    dalitz_pi0s = make_dalitz_pi0s(
+        p_min=2000 * MeV,
+        pt_min=1000 * MeV,
+        gamma_is_not_H=0.05,
+        gamma_is_photon=0.2,
+        min_ipchi2=16,
+    )
 
     line_alg = b_builder.make_bbaryon_2body(
         particles=[kaons, dalitz_pi0s],
@@ -101,11 +104,13 @@ def make_BuToPipPi0_Dalitz(process):
     pips = basic_builder.make_soft_pions(
         p_min=2000 * MeV, pt_min=1000 * MeV, mipchi2_min=16
     )
-    dalitz_pi0s = make_dalitz_pi0s( p_min= 2000 * MeV,
-                                    pt_min=1000 * MeV,
-                                    gamma_is_not_H= 0.05,
-                                    gamma_is_photon= 0.2,
-                                    min_ipchi2= 16)
+    dalitz_pi0s = make_dalitz_pi0s(
+        p_min=2000 * MeV,
+        pt_min=1000 * MeV,
+        gamma_is_not_H=0.05,
+        gamma_is_photon=0.2,
+        min_ipchi2=16,
+    )
     line_alg = b_builder.make_bbaryon_2body(
         particles=[pips, dalitz_pi0s],
         descriptor="[B+ -> pi+ pi0]cc",
@@ -121,10 +126,10 @@ def make_BuToPipPi0_Dalitz(process):
         bpvltime_min=0.2 * picosecond,
         bcvtx_sep_min=None,
         daughter_index=1,
-
     )
     return line_alg
 
+
 @check_process
 def make_BuToL0barPp_LL(process):
     if process == "spruce":