Support for Flamegraph

[zemse]

Motivation

This PR closes #776. Old PR #8315.

Solution

The current implementation modifies existing logic in test subcommand and evm/traces crate.

It adds a flamegraph flag to the test subcommand. The interface is similar to the debug flag. A pattern is to be provided to the flamegraph flag and additional match-contract or match-path maybe used. Finally it is required that just a single test case must be run.

Example:

forge test --flamegraph test_hash_1_a_sol --decode-internal

This will execute the test_hash_1_a_sol test and generate a flamegraph.svg file in the project root.