Media mgr updates and context class

[JamesHabben]

• create context class to hold more info about current module and artifact
• update media functions to use info from context class to reduce params required from modules
• see commit notes for more details

[JamesHabben]

here is a rundown of what's going on:

• the check in media functions use information about the module and artifact name when recording logs and media item information
• there is no direct way to get the module and artifact names without going sort of 'back in time' and thats what the inspect.stack()[0] line was doing. it goes to the stack to find out what file was called to get where it is.
• with the context class, its integrated into the artifact processor which is doing the call to these modules. it knows what module and artifact its calling, so its assigning those values into the context class before calling those modules. see ilapfuncs lines 344-250.
• since the values are stored in the context object, the check in media functions can now pull from there instead of needing the data from the module itself. see ilapfuncs line 182-186.
• not needing that info from the modules now simplifies the data needing to be passed in from the modules, so the check in media function params can be simplified. line 181 & 223
  • old: check_in_media(artifact_info, report_folder, seeker, files_found, file_found, app_name, png_path)
  • new: check_in_media(file_found, app_name, png_path)
• now that we have the context object being created, its easy to add other things to the context. so i added the params that we have traditionally been passing into the artifact functions. with those being in the context object, we can now change the artifact functions to only accept the context.
• with the function changed, the modules access the exact same data via new getter functions. it even serves to protect these values from being modified by a module accidentally.
  • files_found --> context.get_files_found()
  • report_folder --> context.get_report_folder()
  • seeker --> context.get_seeker()
• context can now also be used to provide other information to the module, such as device information.
• for backwards compatibility and not breaking all the existing modules, the artifact processor inspects the function its about to call and determines if it should call the old 5 param or the next single context param. see ilapfuncs lines 352-357.

thats a summary of the changes in context.py and ilapfuncs.py. then i updated a handful of modules to use the new versions. then i also included a bunch of test data stuff that can be ignored for the purposes of this code review.

[Johann-PLW]

Everything is OK.
Thank you for this welcome improvement.