24 Hour Reporting and Default Config Implementation for Log Stat Agent

[riley206]

Description

fixed log stat agent to actually report every 24 hours as well as report the mean. Log stat agent now also has a default config to fall back on if no config is provided or values are missing from the config.

• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How Has This Been Tested?

ran the log stat agent 9.0rc0 branch of volttron.

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules