Make sure all values in the `tiles` table or view are correct:
* zoom_level is between 0 and 30 (max allowed zoom)
* the x,y values are within the limits for the corresponding zoom level
* the column type of z,x,y are all integers
* the `tile_data` is a NULL or a BLOB
# MBTiles
* New `--agg-hash (update|verify|off)` flag replaces
`--update-agg-tiles-hash` (still supported, but not shown in the help
screen). This allows bypassing aggregate hash validation entirely,
without either updating or validating it.
* Simplify MBTiles SQL generation
* MBTiles now uses faster `1 << zoom` everywhere, and a dedicated TMS
inversion fn
* split up metadata insert and delete into separate fn
* consolidated schema initialization
* ensure db settings (like pragma) are always reset on new files
# Other
* Always sort JSON-serialized keys for consistency
* this affects `/catalog` key ordering, but content is the same
* Minor code cleanup
- Add separators to long literal.
- Use first() instead of get(0)
- Move some SQL-making code to their own functions
- Minor mathematics and rounding cleanup
---------
Co-authored-by: Yuri Astrakhan <YuriAstrakhan@gmail.com>
* remove benchmarks - not used for now, will need to be rewritten
* move some CLI settings to a separate struct
* move config saving to a shared function
* simplify zoom level CLI parsing
* rename main.rs to be the same name as generated binary (we can have
multiple bins later)
