Chore: Consolidate ini/config parsing

[erichelgeson]

Config is parsed all over the place which leads to bugs and duplicated code. It is hard coded to one file which makes it inflexible.

We should be able to:

• Abstract away the file it's reading the config from
• Allow updates to config values
  • This is more complex now that there's a caching layer
• Have one way to get the most correct value for a key (See Fixes hard coded block sizes in multiple locations. #47)
  • ini scsi id section - take this no matter what, user must know more than we do
  • ini scsi global section - take this if not set in the id section.
  • File name - take this if not set in the ini
  • Runtime detection if applicable
  • Sane default
• Move config keys to own file and document there
  • Have process parse this file and update ini.bluescsi.com and the wiki automatically