CLI command for merging recordings

[teh-cmc]

Title.

$ rerun rrd merge --help

Merges the contents of multiple .rrd and/or .rbl files, and writes the result to a new file.

Example: rerun merge -i input1.rrd -i input2.rbl -i input3.rrd -o output.rrd`

Usage: rerun rrd merge --input <src.(rrd|rbl)> --output <dst.(rrd|rbl)>

Options:
  -i, --input <src.(rrd|rbl)>


  -o, --output <dst.(rrd|rbl)>


  -h, --help
          Print help (see a summary with '-h')

$ cargo r -p rerun-cli --no-default-features --features native_viewer -- rrd merge -i plot_example.rrd -i plot_example.rbl -o 

[2024-07-11T12:28:02Z INFO  rerun::run] merge started srcs=["plot_example.rrd", "plot_example.rbl"] dst="plot_example_complete.rrd" max_num_rows=1 024 max_num_bytes=8.0 MiB
[2024-07-11T12:28:02Z INFO  rerun::run] merge finished src=["plot_example.rrd", "plot_example.rbl"] src_size_bytes=165 KiB dst="plot_example_complete.rrd" dst_size_bytes=165 KiB time=3.986229ms

• Fixes rerun merge <rrds...>: merge recordings from the CLI #4057
• DNM: Requires CLI refactor: introduce rerun rrd <compare|print|compact> subscommand #6861

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