redraw board in kicad, add ability for using pico2 rp2350

Author: todbot

.gitignore

@@ -49,3 +49,31 @@ eagle.epf
 
 # file locks introduced since 7.x
 *.lck
+
+# 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