Motion-Compensated Block Overlay
Motion-Compensated Block Overlay

Reused the od_mv_grid_pt struct in the analyzer to get motion vector data from
the decoder. The number of blocks in a frame (both vertical and horizontal)
needed to be added to the decoder in order to reduce dependencies of the
analyzer. The shortcut-key crtl-M was chosen for the word Motion. This overlay
will also include Motion Vector in a subsequent commit.

Signed-off-by: Nathan E. Egge <3157e99074b9b42592afe02c45df7de409e8e1a2@dgql.org>

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