fix: wrong specifier for level 

chore: add working example 

feat: toggle logger with logmod_toggle_logger() Add method for toggling specific logger by its context id

feat: store label's color & visibility separately This allows finer-grained control to the user when accessing it via callbacks

docs(README): add ToC and organize it 

feat: enable ctid by default, add pick method Add logmod_logger_set_id_visibility() for enabling/disabling id visibility

feat: default options and fix color - Add default options via logmod_set_options() - Filter logger level with logmod_logger_set_level() - Fix color not being shown correctly

fix: pedantic, -Wall, -Wextra, ... - Fix bad macro - Fix variety of compiler errors

feat: printf-like check Enable printf-like (if supported) attribute for printf compile-check