move pokemon graphics to mon-specific directories

graphics/pokemon/gengar/normal.pal

@@ -0,0 +1,19 @@
+JASC-PAL
+0100
+16
+213 213 213
+255 255 255
+222 222 222
+123 123 123
+255 180 123
+238 98 74
+205 57 32
+255 0 255
+255 0 255
+255 0 255
+255 0 255
+197 131 180
+172 98 148
+131 65 123
+74 41 74
+16 16 16

graphics/pokemon/gengar/shiny.pal

@@ -0,0 +1,19 @@
+JASC-PAL
+0100
+16
+213 213 213
+255 255 255
+222 222 222
+123 123 123
+255 172 213
+238 131 172
+197 90 131
+255 0 255
+255 0 255
+255 0 255
+255 0 255
+164 164 189
+123 123 148
+82 82 106
+41 41 65
+16 16 16