Cleaner formatting of Aviary warnings

[jkirk5]

Summary

Added custom formatting for warning messages Aviary produces based on verbosity level. Currently does not reformat warnings called by other modules, so migrating to a new system such as logging is the long-term solution. QUIET mode does suppress all warnings now though, regardless of which module called them.

New warning format:
Verbosity is 0 (QUIET): warnings are suppressed
Verbosity is 1 (BRIEF): Warning: <warning message> - example: Warning: Missing variable
Verbosity is 2 (VERBOSE): <warning_category>: <warning message> - example: UserWarning: Missing Variable
Verbosity is 3 (DEBUG): default warning message, which includes traceback to filename and line number where warning is triggered

Removed include_landing flag from level2 as it is redundant/conflicting with the already existing include_landing key in phase_info

Related Issues

• Resolves #

Backwards incompatibilities

None

New Dependencies

None