* Moved time functions from pkg stringz to pkg timez
* Refactor options.Opt
* wip: initial work on configurable time layout
* wip: most printers now respect format.datetime and friends
* Folded pkg timefmt into timez
* Refactor options.Opt; refine options
* Add 'sq config set OPTION --help' mechanism
* Finished completion of OptDateFormatAsNumber and OptTimeFormatAsNumber
* CHANGELOG text clarification
* Dialing in config/options
* Yet more dialing in of config/options
* Refactor output writers
* YAML output for more commands
* refactor: partially moved over driver.Tuning params to options
* All knobs moved to options
* sq config edit: now has comments for options
* Major work complete on config/options overhaul
* Major work complete on config/options overhaul
* Updated help text for 'sq version'
* test: slq2sql more test cases; now executes the generated query
* groupby: first test case working against all DBs
* sakila: added sqlserver 2019 source
* groupby: tests for groupby synonyms
* groupby: final touches
* sakila: initial test data
* sakila: more test data
* sakila: yet more test data setup
* whitespace cols: now working for sqlite
* grammar cleanup
* whitespace cols: now working inside count() func for sqlite
* whitespace cols: tests mostly passing; begining refactoring
* grammar: refactor handle
* grammar: more refactoring
* grammar: rename selElement to selector
* wip
* all tests passing
* all tests passing
* linting
* driver: implement CurrentSchema for all driver.SQLDriver impls
* driver: tests for AlterTableRename and AlterTableRenameColumn
* undo reformat of SQL
* undo reformat of SQL
* undo reformat of SQL
* undo reformat of SQL
* Clean up misc text
* config: will repair itself if active source is corrupted
* Clean up error handling code
* CHANGELOG update
* Update config tests to allow invalid active source
* Expose source.Set.Data() method
* jsonw.writeJSON cleaned up
* sq add now respects --json
* Location strings are subject to more scrutiny
* Ignore .db files in project dir
* sq add is more restrictive about location string
* source.RedactedLocation now uses 'xxxxx' per stdlib url.URL.Redacted()
* Update changelog for v0.23.0
* typos
