xprof-rs v0.1.2

The tools and the CLI commands are faster, and they use less memory. The responses do not change.

• On an 80 MB TPU v4 profile with 4 cores, get_hlo_stats, get_top_hlo_ops, get_hlo_op_profile and get_profile_summary take 0.14 s to 0.15 s. In 0.1.1, they took 0.29 s to 0.31 s. Their peak memory is approximately 40% less.
• get_roofline_model takes 0.22 s, and get_device_information takes 0.20 s. In 0.1.1, they took 0.30 s and 0.29 s.
• The first request of the trace viewer takes 0.37 s. In 0.1.1, it took 0.41 s. The first request of the other tools takes 0.24 s to 0.26 s. In 0.1.1, it took 0.27 s to 0.32 s.
• The trace_viewer tool checks the file at the same time as it reads the trace. Before, the check ran first.