Updating script support, taking requests

[Adrianis]

Thanks Patrik!

I want to throw in behind Felixmole's suggestions, they would be really great if possible.
A global timer would also be really neat.


There are some others here that would be easy & clean as simple in-script functions rather than exposed engine functions (i.e. don't require messy work-arounds)

- if-else function that the parameter could turn Integers to Bools and vice-versa?
- 'AddRepeater' Adds a repeater to the script that keeps calling a function
- 'ChainEvent' Does three events in one consecutive order

If those can go in without much effort then great, but if not I'm happy to write them in a generic form and stick them up on the wiki in a easy-to-copy/paste way, or in tutorial form, to save Patrik & Co some time, along with any others that would work without nasty workarounds