Allow scheduled cloud functions to have multiple scheduling jobs (#27)

* converted scheduler job to foreach

* added attributes

* added optionals

* enable experimental feature

* moved definition

* moved scheduler sa outside of loop

* turn list of objects into set

* fixed conditions on non-bool values

* adjusted conditions

Shortened random value and used it for function naming (#26)

* shortened random value and used it for function naming

* make sure random value is always compatible with function name