Apply changes from PR #15 for UDFS (C++ to C conversion)

[Copilot]

Converts the UDFS filesystem driver from C++ to C by applying the changes from assorted/reactos PR #15.

Changes Made

File Renames

• Renamed all .cpp source files to .c in udfs/, udf_info/, and Include/

Build System

• Updated CMakeLists.txt: changed .cpp to .c in SOURCE list, removed -fpermissive, -Wno-invalid-offsetof (GCC), and -Wno-extern-c-compat (Clang)

Header Fixes

• struct.h: Added C typedef forward declarations, replaced using X = Y* with typedef Y* X, replaced static_assert with C_ASSERT, added UCHAR Placeholder to empty FCB_DATA/FCB_INDEX structs, converted enums to typedef enum
• protos.h: Removed extern "C" from DriverEntry, added typedef enum TYPE_OF_ACQUIRE TYPE_OF_ACQUIRE, changed 5 standalone inline functions to static inline
• udffs.h: Changed 3 standalone inline functions to static inline
• Include/phys_lib.h: Removed C++ default parameter values from UDFTRead/UDFTWrite
• Include/mem_tools.h: Added #ifdef MY_USE_INTERNAL_MEMMANAGER guard around function declarations, changed inline to static inline
• Include/Sys_spec_lib.h: Fixed (LONGLONG)Vcb → (LONGLONG)(ULONG_PTR)Vcb
• udf_info/ecma_167.h: Added struct typedefs

Source File Fixes

• Include/string_lib.c: Removed 4 extern "C" from function definitions
• Include/phys_lib.c: Fixed IOCTL argument order, removed unused variables, added explicit Flags=0 to UDFReadSectors/UDFWriteSectors calls
• strucsup.c: Changed 7 inline to static inline, changed FILE_ID FileId{} to FILE_ID FileId = {0}, replaced RTL_CONSTANT_STRING assignments with RtlInitUnicodeString calls
• misc.c: Changed false to FALSE
• fscntrl.c: Changed auto RealDevice to PDEVICE_OBJECT RealDevice, fixed __try/__except to _SEH2_TRY/_SEH2_EXCEPT/_SEH2_END in UDFGetVolumeBitmap
• write.c: Added explicit Flags=0 to UDFTWrite call, fixed LARGE_INTEGER initialization to {{0, 0}}
• env_spec.c: Removed 2 unused PVCB Vcb = NULL declarations
• verfysup.c: Added default: break case in switch statement
• udf_info/udf_info.c: Fixed return NULL → return STATUS_UNSUCCESSFUL in UDFReadTagged
• udf_info/alloc.c: Fixed parameter types (PLONG_AD → PSHORT_AD / PEXT_AD) in function signatures
• sys_spec.c, mem.c, misc.c, udf_info/physical.c: Updated #include paths from .cpp to .c

[Zero3K20]

@copilot Please continue from where the rate limit was hit.

[Copilot]

@copilot Please continue from where the rate limit was hit.

Continued from where we left off. The additional fixes applied in commit 990dd788 include:

• Fixed FILE_ID FileId{}; → FILE_ID FileId = {0}; in strucsup.c
• Replaced 4× LocalPath = RTL_CONSTANT_STRING(...) with RtlInitUnicodeString(&LocalPath, ...) in strucsup.c (RTL_CONSTANT_STRING can't be used in assignment context in C)
• Changed 5 standalone inline functions → static inline in protos.h
• Changed 3 standalone inline functions → static inline in udffs.h

All checklist items from the PR description are now complete.