Addressing multiple TODO's since no one else did

[ApfelTeeSaft]

1. test_recompiler.cpp:216 - Implement CR register checking

   • Added proper CR register validation that checks all 4 fields (lt, gt, eq, so)
   • Each field is extracted from the 4-bit CR value using bit shifts

2. recompiler.h:55 - Create RecompileArgs struct

   • Introduced RecompileArgs struct to encapsulate the 7 function parameters
   • Improves code maintainability and reduces function signature complexity
   • Updated function signature and call site accordingly

3. recompiler.cpp:366 - Add bounds checking for mmioStore

   • Added validation to ensure the next instruction (data + 1) is within function bounds
   • Prevents potential out-of-bounds memory access

4. recompiler.cpp:1258 - Fix MFOCRF hardcoded CR field

   • Implemented proper FXM field mask decoding to determine which CR field to read
   • Removed hardcoded cr6 and now dynamically selects the correct CR field (cr0-cr7)
   • FXM is decoded as an 8-bit mask where bit 0 (0x80) = cr0, bit 1 (0x40) = cr1, etc.