Handle nil Opts parameter in middleware handlers

[gilcrest]

Getting runtime error: invalid memory address or nil pointer dereference if passing a nil as Opts as part of handlers

[gilcrest]

When sending in a nil Opts paramter in any one of the handlers, the library should load options from the httpLogOpt.json file, however, since I've now switched to modules, I need to find a solution for determining the file path of this file as the directories are now versioned as part of modules...