Many types are 1-tuples where they should be arrays

[valerian]

Throughout the declarations there are many occurrences of 1-tuples where it should have been an array.

[string] is a 1-tuple containing 1 element of type string.

string[] is an array of string elements.

And what is even more confusing is that tuples are bugged in TypeScript, allowing to use more elements than defined: microsoft/TypeScript#6229

An example of this issue in the present declarations:

RoomPosition.findClosestByRange<T>(objects: [T|RoomPosition], opts?: {filter: any|string }): T;

Which should actually be:

RoomPosition.findClosestByRange<T>(objects: T[]|RoomPosition[], opts?: {filter: any|string }): T;

I will try to fix all of them and do a pull request.