The addr2line backend of tracy-update now builds on every platform, including Windows, and can be pointed at any addr2line-compatible executable:
- `-a`: path to a custom symbol resolution tool (e.g. `llvm-addr2line` or a cross-compilation toolchain's `addr2line`). Works on all platforms and takes precedence over the platform default (DbgHelp on Windows, the `addr2line` found in `PATH` elsewhere). Path-like values are validated up front so a wrong path fails with an actionable message instead of a cryptic, localized shell error.
- `-A`: extra arguments passed verbatim to the tool, e.g. `--relative-address` so `llvm-addr2line`/`llvm-symbolizer` accept the image-relative offsets Tracy records for images with a non-zero preferred base (PE, Mach-O).
- `-v`: verbose output while patching symbols.
OfflineSymbolResolverDbgHelper.cpp uses IMAGEHLP_LINE but
SymGetLineFromAddr64 expects IMAGEHLP_LINE64. On 64-bit Windows these are typedef'd to the same thing, but on 32-bit they're different.
