XRLocalization Release v0.6.0

Highlights:

• Local features support D2Net
• Global features support NetVLAD
• Matchers support various nearest neighbor and learning-based GAM
• Support retriangulation for new local feature
• Support online localization service and offline benchmark evaluation

New features:

• Add conversion from HLoc reconstruction result to XRLocalization localization map
• Add feature extraction tool for showing keypoints
• Add database creation script
• Add recon feature extraction and matching