bloblang: add typeid function

[rcrowe]

Generate typeid string with or without a prefix, for example, typeid("prefix").

https://github.com/jetify-com/typeid

TypeIDs are a modern, type-safe extension of UUIDv7. Inspired by a similar use
of prefixes in Stripe's APIs.

TypeIDs are canonically encoded as lowercase strings consisting of three parts:

1. A type prefix (at most 63 characters in all lowercase snake_case ASCII
   [a-z_]).
2. An underscore '\_' separator
3. A 128-bit UUIDv7 encoded as a 26-character string using a modified base32
   encoding.

[CLAassistant]

All committers have signed the CLA.