VCS Support

[x87]

As a user I should be able to compile a script into the VCS SCM Format.

Community Specification:

• https://gtamods.com/wiki/LCS/VCS_SCM
• https://gtamods.com/wiki/Opcode#Data_types

[x87]

TODO:

• unlock compiler menu
• custom opcodes (if, jf, start_mission)
• data types
• "write opcodes"
• opcode-less expressions
  • integral
  • string