Unify and extend logging facilities

[woutgg]

Currently, the print server and the Lua code have different log level definitions as well as different log message formatting. Both lack a proper facility mechanism, making it sometimes hard to determine which module logs what.

What needs to be changed:

• [x] Reshuffle log levels (mainly in Lua) to match
• [x] Rename Lua 'debug' level to 'verbose'
• [x] Add 'quiet' and 'bulk' levels to Lua and remove 'fatal' level
• [x] Set loglevels in Lua binding code from frontends
• [x] Add facility support in both loggers
• [x] Unify message formats between both loggers

[peteruithoven]

Since the new log level's won't match users configuration (which is restored after sysupgrades), we have to make sure the loglevels are changed to a supported level. One way to do this is to add a script in the /etc/uci-defaults/ folder, this script, when it exit's with 0 will be deleted automatically. https://wiki.openwrt.org/doc/uci#uci-defaults

[peteruithoven]

We should also remove the following log file override: https://github.com/Doodle3D/doodle3d-firmware/blob/feature/unify-logging%2Bchunk-checking/src/script/d3dapi