move pokemon graphics to mon-specific directories

graphics/pokemon/venonat/normal.pal

@@ -0,0 +1,19 @@
+JASC-PAL
+0100
+16
+148 213 156
+255 255 255
+148 115 164
+213 213 213
+123 123 123
+255 180 172
+255 123 82
+197 82 32
+238 189 156
+189 139 106
+131 82 49
+164 139 189
+139 106 156
+106 82 115
+65 57 82
+16 16 16

graphics/pokemon/venonat/shiny.pal

@@ -0,0 +1,19 @@
+JASC-PAL
+0100
+16
+213 213 180
+255 255 255
+148 115 164
+213 213 213
+131 131 131
+156 230 255
+106 180 255
+57 131 197
+238 189 156
+189 139 106
+139 90 57
+180 123 197
+148 82 164
+106 65 115
+65 16 82
+16 16 16