Some train decomp and move seg2 files to ending (#423)

* Some train decomp

* Move seg2 to ending/

* move racing code files into racing folder

* Fix progress

* Rename segments

src/os/contpfs.c

@@ -295,4 +295,4 @@ s32 __osPfsSelectBank(OSPfs *pfs)
     }
     ret = __osContRamWrite(pfs->queue, pfs->channel, 1024, (u8*)temp, FALSE);
     return ret;
-}
+}

src/os/osPfsSearchFile.c

@@ -48,4 +48,4 @@ s32 osPfsFindFile(OSPfs *pfs, u16 company_code, u32 game_code, u8 *game_name, u8
     }
     *file_no = -1;
     return PFS_ERR_INVALID;
-}
+}