perf: EXC-1818: Add scripts to run all embedder and EE benchmarks

[berestovskyy]

This PR adds scripts to run all embedder and execution environment benchmarks. The script to run all benchmarks is run-all-benchmarks.sh, which repeats benchmarks 10 times. The repetition time can be adjusted with the REPEAT environment variable:

REPEAT=3 run-all-benchmarks.sh

The first time the script runs, it quickly executes the benchmarks to identify any broken ones. At the end, the script summarizes the changes. Example run:

==> Summarizing Embedders Heap results:
    MIN_FILE     := EMBEDDERS_HEAP.min
    BASELINE_DIR := ./rs/execution_environment/benches/baseline
= b36fae731e..44e6fe4067: System API Inspect Message total time: 672 ms (improved by -65.2%)
+ inspect/wasm64/ic0_accept_message()* time regressed by 770.6%
- inspect/wasm32/ic0_msg_method_name_copy()/1B time improved by -90%
- inspect/wasm32/ic0_accept_message()* time improved by -19%