Allow LTC accounts to use segwit addresses

[ghost]

Fixes issue described by a user here:

https://old.reddit.com/r/bisq/comments/omf3l3/cannot_add_ltc_account/

Under "altcoin accounts" I'm trying to add the address of my LTC core wallet.
Neither regular nor Bech32 addresses works. Anyone know How I'd go about adding LTC?

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Implementation:

• The address validator specified the bitcoin magic number for wrapped segwit, 5 -- it should be 50 for LTC.
• The address validator expected base58 only (legacy format). Changed to use an address validator that supports bech32 and base58.

Testing:

Added tests for wrapped segwit and bech32 address formats.

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[ripcurlx]

utACK