Reduced code duplications

Author: Gentleman1983

build.gradle

@@ -4,7 +4,7 @@ plugins {
 
 // project meta data
 group 'de.havox_design.aoc2023'
-version '0.18.1'
+version '0.18.2'
 
 // Switch to gradle "all" distribution.
 wrapper {

day18/build.gradle

@@ -6,6 +6,8 @@ plugins {
 }
 
 dependencies {
+    implementation(project(':day17'))
+
     implementation 'org.jetbrains.kotlin:kotlin-reflect'
     implementation 'org.jetbrains.kotlin:kotlin-stdlib-jdk8'
 

day18/src/main/kotlin/de/havox_design/aoc2023/day18/Coordinate.kt

@@ -1,5 +1,6 @@
 package de.havox_design.aoc2023.day18
 
+import de.havox_design.aoc2023.day17.*
 import kotlin.math.abs
 
 class Day18(private var filename: String) {

day18/src/main/kotlin/de/havox_design/aoc2023/day18/Day18.kt

@@ -1,5 +1,7 @@
 package de.havox_design.aoc2023.day18
 
+import de.havox_design.aoc2023.day17.FourDirectionFlipped
+
 data class DigInstruction(val direction: FourDirectionFlipped, val amount: Int, val colorCode: String) {
     fun transformInstruction(): DigInstruction {
         val steps = colorCode.drop(1).take(5).toInt(16)