RAD isolations update

• Add pizero iso for in B cone
• Loosen IS_NOT_H cut to align with selection on signal photons

Negligible impact on bandwidth

Hlt/Hlt2Conf/python/Hlt2Conf/lines/rd/builders/b_to_xgamma_exclusive_builders.py

@@ -63,6 +63,7 @@ def isolation_parts(input):
         names=["B"],
         candidates=[input],
         cut=F.require_all(in_range(0.0, F.DR2, 0.25), ~F.FIND_IN_TREE()),
+        PiZerosIso=True,
     )
     iso_parts += rd_isolation.select_parts_for_isolation(
         names=["gamma"],
@@ -70,7 +71,7 @@ def isolation_parts(input):
         cut=F.require_all(
             in_range(0.0, F.DR2, 0.16),
             ~F.REQUIRE_CLOSE(F.PT() @ F.FORWARDARG0(), F.PT() @ F.FORWARDARG1()),
-            F.IS_NOT_H() @ F.FORWARDARG1() > 0.3,
+            F.IS_NOT_H() @ F.FORWARDARG1() > 0.2,
         ),
         LongTrackIso=False,
         TTrackIso=False,