toOrdArray converts a string to an array of UTF-8 byte values, returning each character's ordinal value in the UTF-8 encoding.
toOrdArray takes no parameters.
str = "Hello"
log str.toOrdArray()
// ["72", "101", "108", "108", "111"]
// Returns array of UTF-8 byte values
str = "🌟"
log str.toOrdArray()
// ["240", "159", "140", "159"]
// Unicode characters may use multiple bytes
str = ""
log str.toOrdArray()
// []
// Empty string returns empty array
// Can be used with .ord() for single characters
str = "A"
log str.toOrdArray()
// ["65"]
// Same as str.ord() for single characters
