Added day10 part 1

Author: Gentleman1983

build.gradle

@@ -4,7 +4,7 @@ plugins {
 
 // project meta data
 group 'de.havox_design.aoc2023'
-version '0.9.0'
+version '0.9.1'
 
 // Switch to gradle "all" distribution.
 wrapper {

day10/README.md

@@ -0,0 +1,120 @@
+# Day 10: Pipe Maze
+You use the hang glider to ride the hot air from Desert Island all the way up to the floating metal island. This island 
+is surprisingly cold and there definitely aren't any thermals to glide on, so you leave your hang glider behind.
+
+You wander around for a while, but you don't find any people or animals. However, you do occasionally find signposts 
+labeled "[Hot Springs](https://en.wikipedia.org/wiki/Hot_spring)" pointing in a seemingly consistent direction; maybe 
+you can find someone at the hot springs and ask them where the desert-machine parts are made.
+
+The landscape here is alien; even the flowers and trees are made of metal. As you stop to admire some metal grass, 
+you notice something metallic scurry away in your peripheral vision and jump into a big pipe! It didn't look like any 
+animal you've ever seen; if you want a better look, you'll need to get ahead of it.
+
+Scanning the area, you discover that the entire field you're standing on is densely packed with pipes; it was hard to 
+tell at first because they're the same metallic silver color as the "ground". You make a quick sketch of all of the 
+surface pipes you can see (your puzzle input).
+
+The pipes are arranged in a two-dimensional grid of **tiles**:
+* `|` is a **vertical pipe** connecting `north` and `south`.
+* `-` is a **horizontal pipe** connecting `east` and `west`.
+* `L` is a **90-degree bend** connecting `north` and `east`.
+* `J` is a **90-degree bend** connecting `north` and `west`.
+* `7` is a **90-degree bend** connecting `south` and `west`.
+* `F` is a **90-degree bend** connecting `south` and `east`.
+* `.` is **ground**; there is no pipe in this tile.
+* `S` is the **starting position** of the animal; there is a pipe on this tile, but your sketch doesn't show what shape 
+the pipe has.
+  
+Based on the acoustics of the animal's scurrying, you're confident the pipe that contains the animal is **one large, 
+continuous loop**.
+
+For example, here is a square loop of pipe:
+```
+.....
+.F-7.
+.|.|.
+.L-J.
+.....
+```
+If the animal had entered this loop in the northwest corner, the sketch would instead look like this:
+```
+.....
+.S-7.
+.|.|.
+.L-J.
+.....
+```
+In the above diagram, the `S` tile is still a 90-degree `F` bend: you can tell because of how the adjacent pipes 
+connect to it.
+
+Unfortunately, there are also many pipes that **aren't connected to the loop**! This sketch shows the same loop as 
+above:
+```
+-L|F7
+7S-7|
+L|7||
+-L-J|
+L|-JF
+```
+In the above diagram, you can still figure out which pipes form the main loop: they're the ones connected to `S`, pipes 
+those pipes connect to, pipes **those** pipes connect to, and so on. Every pipe in the main loop connects to its two 
+neighbors (including `S`, which will have exactly two pipes connecting to it, and which is assumed to connect back to 
+those two pipes).
+
+Here is a sketch that contains a slightly more complex main loop:
+```
+..F7.
+.FJ|.
+SJ.L7
+|F--J
+LJ...
+```
+Here's the same example sketch with the extra, non-main-loop pipe tiles also shown:
+```
+7-F7-
+.FJ|7
+SJLL7
+|F--J
+LJ.LJ
+```
+If you want to **get out ahead of the animal**, you should find the tile in the loop that is **farthest** from the 
+starting position. Because the animal is in the pipe, it doesn't make sense to measure this by direct distance. 
+Instead, you need to find the tile that would take the longest number of steps **along the loop** to reach from the 
+starting point - regardless of which way around the loop the animal went.
+
+In the first example with the square loop:
+```
+.....
+.S-7.
+.|.|.
+.L-J.
+.....
+```
+You can count the distance each tile in the loop is from the starting point like this:
+```
+.....
+.012.
+.1.3.
+.234.
+.....
+```
+In this example, the farthest point from the start is **`4`** steps away.
+
+Here's the more complex loop again:
+```
+..F7.
+.FJ|.
+SJ.L7
+|F--J
+LJ...
+```
+Here are the distances for each tile on that loop:
+```
+..45.
+.236.
+01.78
+14567
+23...
+```
+Find the single giant loop starting at `S`. **How many steps along the loop does it take to get from the starting 
+position to the point farthest from the starting position**?