Loading VR pose data

[Josh]

Code for loading VR pose data from SteamVR (converting it into JSON files)

    table t;
    auto stream = ReadFile(GetPath(PATH_DESKTOP) + "/R_BONE_ROTATIONS.txt");
    t = {};
    while (not stream->Eof())
    {
        String s = stream->ReadLine();
        s = s.Replace("x:", "");
        s = s.Replace("y:", "");
        s = s.Replace("z:", "");
        s = s.Replace("w:", "");
        s = s.Replace("-", "");
        s = s.Replace("{", "");
        s = s.Replace("}", "");
        s = s.Replace(" ", "");
        auto sarr = s.Split(",");
        table r = {};
        for (int n = 0; n < sarr.size(); ++n) r[n] = sarr[n].ToFloat();
        t.push_back(r);
    }
    SaveTable(t, StripExt(stream->path) + ".json");