Intercept and visualize the callbacks for the new painting feature

Related to: https://github.com/FAForever/fa/pull/6726

We recently introduced the ability to paint directly on the map. With this issue I describe the format so that it can be parsed by the moderator client.

```lua
---@alias UIInterleavedBrushStrokeSamples number[]
```

The name of the sim callback is `SharePaintingBrushStroke`. The data (its argument) is structured as:

```lua
--- Represents a shared brushStroke that is send across the network. The data structure is slightly different to reduce network bandwidth.
---@class UISharedBrushStroke
---@field PaintingAdapterIdentifier string
---@field Samples UIInterleavedBrushStrokeSamples
---@field ShareId number
```

The command source is the player that is responsible for the painting. The painting itself is inside the `Samples` field which is just an array of numbers. The numbers are interleaved (world) coordinates. They are interleaved by [ToInterleavedBrushStrokeSamples](https://github.com/FAForever/fa/blob/develop/lua/ui/game/painting/ShareAdapters/PaintingCanvasAdapter.lua#L222-L243), and then turned back into data that you can work with at [FromInterleavedBrushStrokeSamples ](https://github.com/FAForever/fa/blob/develop/lua/ui/game/painting/ShareAdapters/PaintingCanvasAdapter.lua#L245-L270). Feel free to use a different data structure - the data structures used in the game are designed for maximum efficiency. As an example, [through the use of a structure of arrays instead of an array of structures](https://en.wikipedia.org/wiki/AoS_and_SoA).

Note that the parsing should probably be done in https://github.com/FAForever/faf-java-commons. I'd recommend to store it as a list of drawings and add the command source (and perhaps the name of the player) for convenience.

In the moderator client you'll need a way to map the points to a canvas. I'm not familiar with Java to suggest an approach.