Opencv Mapping Fix

For keypoints using OpenCV, the mapping now uses half of the size in the OpenCV keypoint class. This is due to the fact that OpenCV stores the diameter, not the radius.

Also, the pre-compiled binaries for OpenCV keypoint detectors are removed to ensure that correct version would be used.

Initialization bug fixed

The previous version may have had issues on Linux machines due to initialization issues.
This version fixes the bug and makes sure that the temporary storage is properly initialized.

Faster Version for the C++ implementation of TILDE

Slight improvement in the codes for faster computation of TILDE keypoints.
Does not affect much when running on PC, but makes quite a big difference for mobile devices.

Version 1.0, Hotfix 1

Removed a temporary results which was included to git by mistake

Initial Release of TILDE

Initial Release of TILDE and the Benchmark