[LU-349444] Built in Mod DLL Loader silences exceptions

As part of loading subscribed mods, the built in mod loader calls KMod.DLLLoader.LoadDLLs(path). This function is responsible for finding all of the .dll files in the mod directory, searching their types for OnLoad methods and such, and actually applying the Harmony patches from the mod. If an exception is thrown anywhere in this process, the function remembers indicating failure, and as for the exception... it does nothing. It just swallows the exception. The function indicates failure, so "Failed to load mod ZZZ...disabling" appears in the log, but the exception just disappears, along with all its valuable debugging information.

For mod development, this is really not ideal, since if one of your patches is crashing somewhere, there's no way to actually tell what is happening, since the debug information is swallowed by the mod loader. I think the mod loader needs to print the exception to the log, if nothing else.