Update types to remove ResumableFile.progress argument, add ResumableChunk progress type

[RowiDont]

I might be misinterpreting the source code, but I think the ResumableFile.progress function doesn't seem to take any arguments, where the ResumableChunk.progress does take an optional argument.

I was initially going to just make the ResumableFile.progress argument optional, and while that will fix the issue I'm running in to, I found what I thought was a larger issue, thus my type changes.

In ResumableFile:

      $.progress = function(){
        if(_error) return(1);
        // Sum up progress across everything
        var ret = 0;
        var error = false;
        $h.each($.chunks, function(c){
          if(c.status()=='error') error = true;
          ret += c.progress(true); // get chunk progress relative to entire file
        });
        ret = (error ? 1 : (ret>0.99999 ? 1 : ret));
        ret = Math.max($._prevProgress, ret); // We don't want to lose percentages when an upload is paused
        $._prevProgress = ret;
        return(ret);
      };

And in ResumableChunk:

      $.progress = function(relative){
        if(typeof(relative)==='undefined') relative = false;
        var factor = (relative ? ($.endByte-$.startByte)/$.fileObjSize : 1);
        if($.pendingRetry) return(0);
        if((!$.xhr || !$.xhr.status) && !$.markComplete) factor*=.95;
        var s = $.status();
        switch(s){
        case 'success':
        case 'error':
          return(1*factor);
        case 'pending':
          return(0*factor);
        default:
          return($.loaded/($.endByte-$.startByte)*factor);
        }
      };