Resolve "Sequential data examples"

Closes #39

See merge request !15

ELU Activation Function

See merge request !14

This is unrelated to the MR but it's
minor and not a problem.

Implement Hash for floats so neural instructions can be hashed

See merge request !13

Add generic const expression feature to examples

See merge request !12

Add CI job to check docs

See merge request !11

Resolve "De-/Serialization"

Closes #20

See merge request !10

This causes separate pipelines, which is useless.

Resolve "generalise neurons"

Closes #32

See merge request !8

It is pretty difficult to make this generic, so this is the best solution
I could come up with that is at least extendable by users.

Note that this is rather slow, but it's the first step in making this
into a generic array.

Remove unaligned-references lint forbid

See merge request !7

This is now a hard error so there's no need to forbid
this anymore.

Resolve "Fine-tune Mutation"

Closes #26

See merge request !6

Examples now also use this mutation.

The neighbour trait has been split as well as
it now makes more logical sense to do so.

Polynomial Regression Example

Closes #25

See merge request !5

Add neural net feature

Closes #17 and #9

See merge request !3

Add rayon for multithreading

Closes #8

See merge request !2

For places that can easily make use of `par_iter` it was rather
trivial to add, but there's still some places that are harder
to parallelize.

Add Knapsack Problem example

Closes #2

See merge request !1

The new example shows off knapsack being solved in 100 generations
for both variants: single and multi selection.