Testing generators: input/filter/ouput yielding data
Yielding POC working with a shell/dummy/stdout plan, other components to be tested
Factorized run.execute()
Factorized input()/filter()/output() in execute(), renaming processors functions to process
fixed input/sshsince command generator
Fixed filter/syslog to match 'process' with any character
Merge branch 'factorize-execute' into yield-pipe
Merge branch 'yield-pipe'