move pokemon graphics to mon-specific directories

graphics/pokemon/venusaur/normal.pal

@@ -0,0 +1,19 @@
+JASC-PAL
+0100
+16
+205 205 172
+16 82 32
+32 148 90
+90 205 148
+131 238 197
+131 49 0
+189 106 49
+16 16 16
+222 65 65
+255 131 115
+156 246 139
+222 205 49
+255 238 82
+65 164 24
+106 205 65
+255 255 255

graphics/pokemon/venusaur/shiny.pal

@@ -0,0 +1,19 @@
+JASC-PAL
+0100
+16
+205 205 172
+16 82 32
+131 164 0
+180 213 16
+213 246 49
+131 49 0
+189 106 49
+16 16 16
+255 148 0
+255 197 41
+156 246 139
+255 238 82
+255 255 255
+41 164 16
+82 205 57
+255 255 255