This commit covers
• TH02/TH03/TH04/TH05's frame_delay() and frame_delay_2() (finally!)
• TH02/TH03/TH04/TH05's game_init_main()
• TH02's graph_copy_rect_1_to_0_16()
• TH03/TH04/TH05's cfg_load_resident_ptr()
• TH05's piano_setup_and_put_initial() and piano_render()
Part of P0264, funded by [Anonymous] and Blue Bolt.