rename object to platform, refact of file names

konstructor/object.npc.go

@@ -0,0 +1,16 @@
+package konstructor
+
+type NPCTypeMapKey string
+
+type NPCTypeMap map[NPCTypeMapKey]NPCType
+
+type NPCType struct {
+	ID     string
+	Render Render
+}
+
+type NPC struct {
+	ID       string
+	Type     NPCType
+	Position Position
+}