Include missing exports, loader transcript when available

[ranweiler]

On Windows, when we enable loader snaps in dynamic-linker in the fuzzer help check, we get an extensive loader transcript. When a specific export is missing from the DLL that was resolved, we also get information about which export is missing.

1. When a DLL is found, but one or more expected exports are missing, report them. The wrong DLL was probably found and loaded.
2. On error on Windows, include the entire loader transcript in the task error logs.

AB#36071