Update dice files

dice/4x4.csv

@@ -0,0 +1,17 @@
+# Listed alphabetically
+a,a,a,e,e,g
+a,b,b,j,o,o
+a,c,h,o,p,s
+a,f,f,k,p,s
+a,o,o,t,t,w
+c,i,m,o,t,u
+d,e,i,l,r,x
+d,e,l,r,v,y
+d,i,s,t,t,y
+e,e,g,h,n,w
+e,e,i,n,s,u
+e,h,r,t,v,w
+e,i,o,s,s,t
+e,l,r,t,t,y
+h,i,m,n,qu,u
+h,l,n,n,r,z