Split items/ and trainers/ into their data/ and engine/ components

Move some data into a pokemon/ subdirectory

data/maps/spawn_points.asm

@@ -0,0 +1,41 @@
+spawn: MACRO
+; map, y, x
+	map \1
+	db \2, \3
+ENDM
+
+SpawnPoints: ; 0x152ab
+; entries correspond to SPAWN_* constants
+
+	spawn KRISS_HOUSE_2F,              3,  3
+	spawn VIRIDIAN_POKECENTER_1F,      5,  3
+
+	spawn PALLET_TOWN,                 5,  6
+	spawn VIRIDIAN_CITY,              23, 26
+	spawn PEWTER_CITY,                13, 26
+	spawn CERULEAN_CITY,              19, 22
+	spawn ROUTE_10_NORTH,             11,  2
+	spawn VERMILION_CITY,              9,  6
+	spawn LAVENDER_TOWN,               5,  6
+	spawn SAFFRON_CITY,                9, 30
+	spawn CELADON_CITY,               29, 10
+	spawn FUCHSIA_CITY,               19, 28
+	spawn CINNABAR_ISLAND,            11, 12
+	spawn ROUTE_23,                    9,  6
+
+	spawn NEW_BARK_TOWN,              13,  6
+	spawn CHERRYGROVE_CITY,           29,  4
+	spawn VIOLET_CITY,                31, 26
+	spawn ROUTE_32,                   11, 74
+	spawn AZALEA_TOWN,                15, 10
+	spawn CIANWOOD_CITY,              23, 44
+	spawn GOLDENROD_CITY,             15, 28
+	spawn OLIVINE_CITY,               13, 22
+	spawn ECRUTEAK_CITY,              23, 28
+	spawn MAHOGANY_TOWN,              15, 14
+	spawn LAKE_OF_RAGE,               21, 29
+	spawn BLACKTHORN_CITY,            21, 30
+	spawn SILVER_CAVE_OUTSIDE,        23, 20
+	spawn FAST_SHIP_CABINS_SW_SSW_NW,  6,  2
+	spawn N_A,                        -1, -1
+; 1531f