[PATCH] mscoree: Set config path for default app domain

[Vincent Povirk]

+    GetModuleFileNameA(NULL, base_dir, sizeof(base_dir));
+
+    slash = strrchr(base_dir, '\\');
+    if (slash)
+        *slash = 0;
+
+    TRACE("setting base_dir: %s, config_path: %s\n", base_dir, config_pathA);
+    mono_domain_set_config(This->default_domain, base_dir, config_pathA);

Mono embedding api functions expect utf8-encoded paths. We need to use
the W function and utf8-encode using WtoA.