Adjustment to LAN9512 reference schematics: pull ups for tx, rx, caps for emi, adjustments for the test pins, some minor changes;

Skew optimized;
Adds PoE filter caps;
Major Ground domain rework;
Minor adjustemnets

fp-lib-table

@@ -2,4 +2,5 @@
   (version 7)
   (lib (name "RPi_Compute_Module_4")(type "KiCad")(uri "${KIPRJMOD}/../external/RPi-CM4-Kicad/RPi_Compute_Module_4.pretty")(options "")(descr ""))
   (lib (name "jkiv-library")(type "KiCad")(uri "${KIPRJMOD}/../external/jkiv-kicad-library/jkiv-library.pretty")(options "")(descr ""))
+  (lib (name "auracast_streamer")(type "KiCad")(uri "/home/paul/Nextcloud/tech/pcb/kicad/library/auracast_streamer.pretty")(options "")(descr ""))
 )