chore(profiler): Docs on profiler command and more complete error reporting

[vezenovm]

Description

Problem*

Towards #6410 but only on the CLI commands themselves

Summary*

Add documentation on commands for main help command:

Profiler for noir circuits

Usage: noir-profiler <COMMAND>

Commands:
  gates              Generates a flamegraph mapping backend opcodes to their associated locations in the source code
  opcodes            Generates a flamegraph mapping ACIR opcodes to their associated locations in the source code
  execution-opcodes  Generates a flamegraph mapping unconstrained Noir execution to source code
  help               Print this message or the help of the given subcommand(s)

Options:
  -h, --help     Print help
  -V, --version  Print version

All the commands previously had no help information.

I also added some initial error reporting for the CLI.

Previously we would panic if someone supplied a program artifact to execution-opcodes that was not compiled with an unconstrained main function.

Executing
Executed
Collecting 0 samples
Generating flamegraph with 0 samples
2025-02-18T23:42:43.252759Z ERROR inferno::flamegraph: No stack counts found    
I/O error: No stack counts found

Caused by:
    No stack counts found

Location:
    tooling/profiler/src/flamegraph.rs:122:9

This provides little information to the user and also opens up the internals of the profiler.
We now report the following:

I also added reporting in case of an execution error. We would previously just fail with "Failed to solve Brillig function". Now we utilize the same reporting from the execute command.
Here is an example failure:

Additional Context

I held off on improving error reporting for reading artifacts as that can be done as part of #7381.

Documentation*

Check one:

• No documentation needed.
• Documentation included in this PR.
• [For Experimental Features] Documentation to be submitted in a separate PR.

PR Checklist*

• I have tested the changes locally.
• I have formatted the changes with Prettier and/or cargo fmt on default settings.

[TomAFrench]

LGTM, let's get this in before 1.0.0-beta.3

[TomAFrench]

@michaeljklein can you remove your block?