LEGORACERS: annotate __controlfp and extend vector iterator sizes

Three small fixes that became visible once --nolib was dropped from CI.

- Annotate __controlfp at 0x004a880e (import thunk to MSVCRT.DLL's
  _controlfp). Bumps __setdefaultprecision from 83.33% -> 100% since the
  call site can now name-normalize.

- Extend CSV sizes for the vector ctor/dtor iterators to include their
  trailing 24-byte SEH __finally handler block (which is compiler-emitted
  immediately after the function's ret and falls into a gap before the
  next named function). The handler is part of the function body but the
  CSV size was cut off at the ret. Bumps:
    ??_L@YGXPAXIHP6EX0@Z1@Z  85.00% -> 95.45%
    ??_M@YGXPAXIHP6EX0@Z@Z   86.84% -> 97.62%
  The remaining ~4% diff is reccmp's <OFFSETN> display for the
  intra-function handler-block call — byte-identical, just unresolved.

Not addressed here: ?__ArrayUnwind (97.14%) and _WinMainCRTStartup
(99.12%) — both diffs are SEH scope-table address operands which are
layout-dependent.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: foxtacles

LEGORacers/library_msvc.h

@@ -49,6 +49,9 @@
 // LIBRARY: LEGORACERS 0x004a880d
 // __setargv
 
+// LIBRARY: LEGORACERS 0x004a880e
+// __controlfp
+
 // LIBRARY: LEGORACERS 0x004a8498
 // _DirectInputCreateA@16
 

reccmp/lego-racers-function-size.csv

@@ -4295,9 +4295,9 @@ address,type,size
 004a84b0,function,6
 004a84b6,function,6
 004a84bc,function,6
-004a84c2,function,106
+004a84c2,function,130
 004a852c,function,24
-004a8544,function,104
+004a8544,function,128
 004a85ac,function,24
 004a85c4,function,94
 004a8622,function,22