Profiles: added Amstrad_CPC_3bit and Amstrad_CPC_6bit

Change-Id: I9ccd6efe63d982f2091eb824189f21fbfc307b4a

src/scripts/Profiles/Amstrad_CPC_3bit.txt

@@ -0,0 +1,3 @@
+sampling=4,4,4,4,4,4,4,0,6,1,5,0
+geometry=188,65,672,200,1024,270,1,8,16000000,1024,5000,625,4,0
+palette_control=1

src/scripts/Profiles/Amstrad_CPC_6bit.txt

@@ -0,0 +1,4 @@
+sampling=0,0,0,0,0,0,0,0,6,0,5,1
+geometry=188,65,672,200,1024,270,1,8,16000000,1024,5000,625,4,0
+palette=3
+palette_control=1