[C++][Tools] Create visualization tool for exec plan tracing logs

I'm assigning the C++ component because this is only relevant to the C++ streaming execution engine. However, the tool itself need not be written in C++.

Ideally this tool, given the exec plan log generated by ARROW-15061, the tool will generate some kind of flame chart.

A basic description of the process should be added to the execution engine docs or in a readme somewhere.

**Reporter**: [Weston Pace](https://issues.apache.org/jira/browse/ARROW-15063) / @westonpace

_{**Note**: *This issue was originally created as [ARROW-15063](https://issues.apache.org/jira/browse/ARROW-15063). Please see the [migration documentation](https://github.com/apache/arrow/issues/14542) for further details.*}

Start by reading the exec plan log format generated by ARROW-15061 and the C++ streaming execution engine context. Locate the execution engine documentation or a suitable README for the process description. Done means a tool can turn the tracing logs into a flame chart and the basic workflow is documented.

Written by the indexing model from the issue text.