Fixed some tests, renamed override-palette option in imagecon

tools/imagecon/reference/shared-copper-list.s

@@ -0,0 +1,32 @@
+	dc.w $180,$36b
+	dc.w $182,$feb
+	dc.w $184,$353
+	dc.w $186,$ffd
+	dc.w $188,$332
+	dc.w $18a,$222
+	dc.w $18c,$421
+	dc.w $18e,$0
+	dc.w $190,$211
+	dc.w $192,$37b
+	dc.w $194,$443
+	dc.w $196,$463
+	dc.w $198,$b95
+	dc.w $19a,$48c
+	dc.w $19c,$eda
+	dc.w $19e,$da6
+	dc.w $1a0,$cde
+	dc.w $1a2,$684
+	dc.w $1a4,$9aa
+	dc.w $1a6,$eff
+	dc.w $1a8,$9bd
+	dc.w $1aa,$898
+	dc.w $1ac,$dc8
+	dc.w $1ae,$aa8
+	dc.w $1b0,$bcc
+	dc.w $1b2,$665
+	dc.w $1b4,$6ad
+	dc.w $1b6,$375
+	dc.w $1b8,$a64
+	dc.w $1ba,$8a4
+	dc.w $1bc,$743
+	dc.w $1be,$587

tools/imagecon/reference/shared.pal

@@ -0,0 +1,32 @@
+36b
+feb
+353
+ffd
+332
+222
+421
+000
+211
+37b
+443
+463
+b95
+48c
+eda
+da6
+cde
+684
+9aa
+eff
+9bd
+898
+dc8
+aa8
+bcc
+665
+6ad
+375
+a64
+8a4
+743
+587