Removed hard code event identifier to use the existent constant
Fixed typo
`one-time-cycle-test` fixed small low important issue & added test case

I fixed, in `one-time-cycle-test`, a small low important issue which
could provoke a false positive in the test and add a new test case
Changed condition to better readability
Fixed issue in `runflows/one-time-cycle` to allow to pass multiple args

The issue had not been detected due the test only call the runflows with
only an argument; I changed to pass an array of arguments to be able to
pass multiple arguments to the sequece, providing them to Engine.speedUp
Fixed identation in `break` statements
Renamed to camel case one-time-cycle runflow in test
Added a new runflow which execute sequences from a generator

I added the implementaiton and the first test cases