Matrix "Hatching"

Simple

You are given a 2-dimensional matrix: a list of lists of integers. Your function should return another Iterable of lists, where each inner list is a sequence of matrix elements on the same diagonal "stroke". The order of elements in the "stroke" is SW -> NE. So, building these sequences is like "hatching" the matrix!

Let's look at the example. The matrix may NOT be square!

Input: List of lists of integers.

Output: List or another Iterable (generator, iterator) of lists of integers.

Examples:

```assert list(hatching([[0]])) == [[0]]
assert list(hatching([[1, 2], [3, 4]])) == [[1], [3, 2], [4]]
assert list(hatching([[1, 2, 3, 4, 5], [6, 7, 8, 9, 0]])) == [
[1],
[6, 2],
[7, 3],
[8, 4],
[9, 5],
[0],
]
assert list(hatching([[1, 2], [3, 4], [5, 6], [7, 8], [9, 0]])) == [
[1],
[3, 2],
[5, 4],
[7, 6],
[9, 8],
[0],
]
```
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In order to install CheckiO client you'll need installed Python (version at least 3.8)

Install CheckiO Client first:

`pip3 install checkio_client`

`checkio --domain=py config --key=`

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`checkio serv -d`

Alternatevly, you can install Chrome extension or FF addon

`checkio install-plugin`
`checkio install-plugin --ff`
`checkio install-plugin --chromium`

Read more here about other functionality that the checkio client provides. Feel free to submit an issue in case of any difficulties.

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