update .gitignore

- add rules regarding KiCad
- add rules regarding FreeCAD
- add rules regarding blender

Signed-off-by: schauausgmbh <social@schauaus.at>

.gitignore

@@ -32,3 +32,41 @@
 *.out
 *.app
 
+# ---> KiCad
+# 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
+
+# Exported BOM files
+*.xml
+*.csv
+
+# ---> FreeCAD
+*.FCBak
+
+# ---> blender
+*.blend?