STD library functions

[FuzzyNovaGoblin]

list of functions to add for the standard library

• [x] type
• [x] onErr
• [x] onNull
• [x] onType
• [ ] env (read enviornment variable)
• [x] swap
  • [x] string implementation
• [x] remove
  • [x] string implementation
  • [x] uses negative index to count from end
• [x] insert
  • [x] string implementation
• [x] trim
• [x] eprint/eprintLn
• [ ] readBytes
• [ ] writeBytes
• [ ] open
• [ ] process
• [x] read
• [x] write
• [x] then
• [x] else
• [x] shell
• [x] while
• [x] rand
• [x] shuffle
• [x] append
• [x] ref
• [x] pop
• [x] push
• [x] concat