Implement linked lists in GOOL

[bmaclach]

GOOL should have functions for creating linked lists, analogous to the already existing listType for generic lists and the functions for creating arrays.

Giving this a low priority label because linked lists aren't needed by any of our current applications yet, at least that I know of.

[muhammadaliog3]

How should we implement the linked lists?

1. Implement them as lists that only support adding/removal/access at the ends
2. Implement with a node as a class and pointer to next next
3. Implement with a libraries (For example C++ has std::list, java has LinkedList in its utils package)

After having picked that we need to decide on how we are going to access/remove elements at a specific index (this will probably depend on the above choice)

1. use a foreach loop until we find the desired node.
2. access with brackets like a regular list.
3. With prebuilt functions in the linked list library

[JacquesCarette]

Our "linked lists" should be as standard as possible. We shouldn't implement them ourselves if at all possible - so we should use the library-provided versions when we can. So choice number 3.

And this really is low-priority!

[muhammadaliog3]

How low-priority is this issue, given that this would allow us to complete #2117 , and perhaps we could use this issue as "sub issue" to add vector related functions to lists in GOOL, such as dot product.

[JacquesCarette]

Right now, GOOL is in very good shape. To really be able to deal with those other issues, it is parts of Drasil itself that need more attention. For example #2194 and #1869. And #1795 - #1800. Very much #1601. #1174. #891 [Little hacks like #1778 should be deal with too]

A number of those require non-trivial design (so I'd want you to make a proposal before coding), but they will advance Drasil much more. You are now quite a bit more familiar with the project, I think you're ready to start tackling some of these bigger things. On some, we might need a (virtual) meeting, so that I can brief you on the wider issues.