Implement more efficient export logging

Unicorn hooks are expensive. It seems to iterate all hooks every
time an instruction is executed. Therefore more hooks -> slower execution.

Instead, we'll have one hook. Within that hook we'll check if the address
is within a mapped binary. If so, we then check if it is and export and
log when true. That's far more efficient than checking all hooks every time.

src/windows_emulator/process_context.hpp

@@ -14,10 +14,13 @@ using exported_symbols = std::vector<exported_symbol>;
 
 struct mapped_binary
 {
+	std::filesystem::path path{};
+	std::string name{};
 	uint64_t image_base{};
 	uint64_t size_of_image{};
 	uint64_t entry_point{};
 	exported_symbols exports{};
+	std::unordered_map<uint64_t, std::string> export_remap{};
 };
 
 struct event
@@ -51,8 +54,10 @@ struct process_context
 	emulator_object<RTL_USER_PROCESS_PARAMETERS> process_params{};
 	emulator_object<KUSER_SHARED_DATA> kusd{};
 
-	mapped_binary executable{};
-	mapped_binary ntdll{};
+	std::map<uint64_t, std::unique_ptr<mapped_binary>> mapped_binaries{};
+
+	mapped_binary* executable{};
+	mapped_binary* ntdll{};
 
 	handle_store<handle_types::event, event> events{};
 	handle_store<handle_types::file, file> files{};