Add support for array types

[Ravenink]

We need to support array types in both controls and indicators

[Ravenink]

Arrays of basic types (float, int, boolean and string) are enough. @Dictino, I know you are really busy these days, but if you could please work on this soon, it would be great. Pretty please?

[Ravenink]

Thanks to @Dictino, we already have support for arrays of floats. We'll add more types of arrays at some point.