[gbeane]

Bump version to 0.51.0.

Changes since 0.50.1

New features

• jabs-viewer: bounding box overlay and frame/video export (Add bounding box overlay and frame/video export to jabs-viewer #568)
• update-pose: match labels by segmentation and split blocks at identity changes (Match update-pose labels by segmentation and split blocks at identity changes #569)
• update-pose / update-labels: process videos in parallel (Process update-pose and update-labels videos in parallel #570)
• Dev script to flag likely instancing errors in pose files (Add dev script to flag likely instancing errors in pose files #566)

Performance

• Compute window std dev, skew and kurtosis together (Compute window std dev, skew and kurtosis together #558)
• Vectorize pairwise social distance features (Vectorize pairwise social distance features #562), identity_centroids (Vectorize identity_centroids #563), and compute_all_bearings (Vectorize compute_all_bearings #564)

No FEATURE_VERSION bump; cached features remain valid.

Fixes / cleanup

• Stop drawing search hits outside the detail bar's window (Stop drawing search hits that fall outside the detail bar's window #567)
• Build session activity log entries in one place (Build session activity log entries in one place #565)
• Declare shared label-remap CLI options in one place (Declare the shared label-remap CLI options in one place #574)
• Run Qt tests offscreen (Run Qt tests offscreen so they don't open windows #573)

Dependencies / docs

• Raise lockfile security floors to clear Dependabot alerts (Raise lockfile security floors to clear Dependabot alerts #572)
• Remove stale NWB segmentation limitation from docs (Remove stale 'segmentation not exported' NWB limitation #571)