Experimenting with a "StringList" type for simpler handling of string arrays/lists

[Heimdall]

@bplus and @aadityap0901: Thanks for these "long string" list examples! I was actually considering something like that too. But my assumption was that it would be slow and also that I might run into a string length limit, if I ever needed to use it for a large list. If I remember correctly, arrays can fit more items, and strings are limited (perhaps to 32k characters or something like that)? Might of course work very well for shorter lists.

@Pete: Ah, that's clever - I hadn't seen that post! But yeah, I would probably never have succeeded in reading/decoding that explanation