v0.23.0

• A parser for JSON and JSON Lines has been added.
• Unknown per-file options cause an error. No more silent typos!
• The parser/serializer options arrays and dicts are unified into one option: kv (for "key-value"). kv=true acts as dicts=true; kv=false acts as arrays=true.
• The indent option for the JSON serializer is renamed to pretty.
• The Tcl serializer has new options: lines and pretty.
• New SQLite functions are added for working with Tcl data: dict_exists, dict_get, lindex, llength, lrange, regexp, regsub.
• Error messages are valid Tcl lists.