CharAllows storing character as one byte.
obj Char {
  byte: byte
  isDigit: bool
  isLetter: bool
  isLetterOrDigit: bool
  isLower: bool
  isUpper: bool
  isWhitespace: bool
  lower: char
  upper: char
}
byte - Byte representation of character. 
isDigit - Whether character is digit. 
isLetter - Whether character is letter. 
isLetterOrDigit - Whether character is letter or digit. 
isLower - Whether character is in lowercase. 
isUpper - Whether character is in uppercase. 
isWhitespace - Whether character is whitespace. 
lower - Lowercase representation of character. 
upper - Uppercase representation of character.
Char.repeat()Repeats character specific number of times.
fn Char.repeat (times: int) str
times - Number of times to repeat.
Char.str()Returns a string representation.
fn Char.str () str