move pokemon graphics to mon-specific directories

graphics/pokemon/medicham/normal.pal

@@ -0,0 +1,19 @@
+JASC-PAL
+0100
+16
+139 213 139
+255 255 255
+255 156 148
+230 123 123
+205 90 82
+123 82 74
+0 0 0
+164 139 106
+164 164 164
+131 131 131
+255 230 131
+255 205 90
+238 238 213
+213 213 197
+189 189 172
+139 139 123

graphics/pokemon/medicham/shiny.pal

@@ -0,0 +1,19 @@
+JASC-PAL
+0100
+16
+139 213 139
+255 255 255
+139 189 246
+98 148 205
+74 115 172
+74 90 115
+0 0 0
+164 139 106
+164 164 164
+131 131 131
+255 230 131
+255 205 90
+238 205 164
+230 172 139
+205 148 115
+123 90 74