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Truthify an array

[Jelly](https://github.com/DennisMitchell/jellylanguage) has an atom called untruth, which when given indices, creates an array with 1s at those places: `[2,4] → [0,1,0,1]`.

You are required to perform the inverse of this. Given a 2D boolean array, find the indices of the true values in it.


# Challenge
You will be given a single 2D boolean array \$M\$. You may take its dimensions as a separate argument if needed.

The output must consist of all the indices of the true values in \$M\$.

Output may be 0-indexed or 1-indexed.

It is guaranteed that the input will only consist of two different values.

# Test Cases
All test cases are 0-indexed.
```
I: [[1,0,1,1,1,0]]
O: [[0,0],[0,2],[0,3],[0,4]]

I: [[1,0,1],[1,0,1],[0,1,0]]
O: [[0,0],[0,2],[1,0],[1,2],[2,1]]

```

Truthify an array

[Jelly](https://github.com/DennisMitchell/jellylanguage) has an atom called untruth, which when given indices, creates an array with 1s at those places: `[2,4] → [0,1,0,1]`.

You are required to perform the inverse of this. Given a boolean array with any number of dimensions, find the indices of the true values in it.


# Challenge
You will be given a single boolean array \$M\$. You may take its dimensions as a separate argument if needed.

The output must consist of all the indices of the true values in \$M\$.

Output may be 0-indexed or 1-indexed.

It is guaranteed that the input will only consist of two different values.

# Test Cases
All test cases are 0-indexed.
```
I: [1,0,1,1,1,0]
O: [0,2,3,4]

I: [[1,0,1],[1,0,1],[0,1,0]]
O: [[0,0],[0,2],[1,0],[1,2],[2,1]]

I: [[[1,0,1,1],[1,1,1,1],[0,0,0,1],[1,0,0,1]],[[0,1,0,0],[0,0,0,0],[0,1,1,1],[0,1,0,0]],[[1,1,1,0],[0,0,1,0],[1,1,1,0],[1,0,0,1]],[[0,0,0,1],[1,0,1,0],[1,1,0,0],[0,1,1,1]]]
O: [[0,0,0],[0,0,2],[0,0,3],[0,1,0],[0,1,1],[0,1,2],[0,1,3],[0,2,3],[0,3,0],[0,3,3],[1,0,1],[1,2,1],[1,2,2],[1,2,3],[1,3,1],[2,0,0],[2,0,1],[2,0,2],[2,1,2],[2,2,0],[2,2,1],[2,2,2],[2,3,0],[2,3,3],[3,0,3],[3,1,0],[3,1,2],[3,2,0],[3,2,1],[3,3,1],[3,3,2],[3,3,3]]
```

[Here are the inputs in a more usable format.](https://dzaima.github.io/paste#0VVBBDsMgDLvzlhyCvdN@sNMegPjCNGnt/9cQU1pVwiGO7dDX57tvv2dp1dzq@LyXltduJ/oggpmTg6yq3PwiiOooU3TIJu8yqssyTK21mZyTWa3e3fOatCbv7sem5b1vepsbjPaI7ecY0mCcUSNERfZaA0Ke71eAEMLkIaTmOO7rP@JECJPn6EO50DyUD5v7QTzEQ32qn3nUvtS@lJ7SU3oqNxBC9v4H#JS)