feat: add KiCad lock/autosave files

KiCad.gitignore

@@ -16,6 +16,8 @@ _autosave-*
 *-save.pro
 *-save.kicad_pcb
 fp-info-cache
+~*.lck
+\#auto_saved_files#
 
 # Netlist files (exported from Eeschema)
 *.net