Added differential taper parametric search

simulations/differential_taper/.gitignore

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+# gerber2ems outputs
+ems/
+ems_*/
+output/
+variants*/
+
+# For PCBs designed using KiCad: https://www.kicad.org/
+# Format documentation: https://kicad.org/help/file-formats/
+
+# Temporary files
+*.000
+*.bak
+*.bck
+*.kicad_pcb-bak
+*.kicad_sch-bak
+*-backups
+*.kicad_prl
+*.sch-bak
+*~
+_autosave-*
+*.tmp
+*-save.pro
+*-save.kicad_pcb
+fp-info-cache
+~*.lck
+\#auto_saved_files#
+
+# Netlist files (exported from Eeschema)
+*.net
+
+# Autorouter files (exported from Pcbnew)
+*.dsn
+*.ses

simulations/differential_taper/differential.kicad_dru

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+(version 1)
+(rule "Pad clearance"
+	(condition "A.type == 'pad'")
+	(constraint clearance (min 0.01mm))
+)
+
+(rule "Track clearance"
+	(condition "A.type == 'track' && B.type == 'track'")
+	(constraint clearance (min 0.01mm))
+)
+
+(rule "Track clearance"
+	(condition "A.type == 'track' && B.type == 'Via'")
+	(constraint clearance (min 0.01mm))
+)
+
+(rule "Track clearance"
+	(condition "A.type == 'Zone' && B.type == 'Via'")
+	(constraint clearance (min 0.01mm))
+)
+
+(rule "Zone Min Width Rule"
+	(condition "A.Type == 'Zone' && A.NetClass != B.NetClass")	
+	(constraint physical_clearance (min 0.01mm))
+	(constraint track_width (min 0.01mm))
+)
+
+(rule "Annular via width"
+	(condition "A.NetClass != B.NetClass")	
+	(constraint annular_width (min 0.01mm))
+	(constraint hole_clearance (min 0.01mm))
+	(constraint hole_to_hole (min 0.01mm))
+	(constraint physical_hole_clearance (min 0.01mm))
+)
+
+(rule "Prevent Via to Ground Plane"
+    (constraint zone_connection none)
+    (condition "A.Type == 'Via' && B.Type == 'Zone'")
+)