moar layout done

touchscreen now has a 3d model
added a volume knob for the headphones, the loudspeaker will not get one :)

i feel like something is missing. maybe the component count is a little low for a soldering workshop...

kicad/sym-lib-table

@@ -0,0 +1,3 @@
+(sym_lib_table
+  (lib (name "synth_plate")(type "Legacy")(uri "${KIPRJMOD}/synth_plate.lib")(options "")(descr ""))
+)