First-class support for the Sanny Builder Library files

[x87]

Currently if you try to download the files from SB Library (classes.db, enums.txt) in most cases you won't be able to use them due to numerous issues. This ticket summarized the work that needs to be done in order to make SBL definitions ready to use.

• #147
• #66
  • #66 (comment)
  • #136 (comment)
• sannybuilder/library#29
• #168
• sannybuilder/library#40
• #172
• #141
• #288
• arguments are counted as exactly one value
• #297