change the name of the function to list resolved scanners in sos_analyzer.scanners
add default configuration for chkconfig module
add note about requirements
add dependency to python*-anyconfig
add an utility function to find sosreport data dir and its test cases
add --conf and --analyze options and implemented basic logic to run scanners
introduced enabled member to allow users disable specific scanners and its test cases
change the type of states from int to string to make it more human friendly
make only enabled scanners listed
add test cases for sos_analyzer.scanner.chkconfig.run
added an experimental module to call functions asynchronously
move code block to run scanners from sos_analyzer.cli to sos_analyzer.scanners