Started re-tracking. Also sets up board stack to JLCPCB 7628

Author: jonathanpallant

Kicad/expansion_slots.kicad_sch

@@ -2414,7 +2414,7 @@
     (effects (font (size 1.27 1.27)) (justify left bottom))
     (uuid e71d479a-bb14-4e1c-805f-b6542356ba4f)
   )
-  (label "SPI_CIPO" (at 35.56 175.26 180)
+  (label "SPI_CIPO" (at 35.56 170.18 180)
     (effects (font (size 1.27 1.27)) (justify right bottom))
     (uuid f3395b79-638e-4b2f-91b9-36af751a39ff)
   )
@@ -2426,11 +2426,11 @@
     (effects (font (size 1.27 1.27)) (justify right bottom))
     (uuid f4426b7e-9a84-4962-a170-24e9ddee00f7)
   )
-  (label "SPI_COPI" (at 35.56 170.18 180)
+  (label "SPI_COPI" (at 35.56 172.72 180)
     (effects (font (size 1.27 1.27)) (justify right bottom))
     (uuid f888403c-b38f-47a1-944e-ed8af076096d)
   )
-  (label "SPI_CLK" (at 35.56 172.72 180)
+  (label "SPI_CLK" (at 35.56 175.26 180)
     (effects (font (size 1.27 1.27)) (justify right bottom))
     (uuid fd7caa4f-5757-4f88-9baf-542375086244)
   )