Add simple logger for Crawlite4j core
Add ILogger interface, AbstractLogger
update Level, SimpleConsole
Add AbstractSpider
Add new source folder ./src/test
Add scheduler, update log, update spider, format code
Update scheduler, add LIFOScheduler, FIFOScheduler,  add DuplFilters
Add engine
update
Add middleware
Add selenium, jsoup and json libs
Rm warn from json lib