Adds some tests for the salvage helper

pom.xml

@@ -35,6 +35,10 @@
             <id>vault-repo</id>
             <url>https://nexus.hc.to/content/repositories/pub_releases</url>
         </repository>
+        <repository>
+            <id>papermc</id>
+            <url>https://repo.papermc.io/repository/maven-public/</url>
+        </repository>
     </repositories>
     <distributionManagement>
         <repository>
@@ -86,6 +90,18 @@
             <version>1.0-SNAPSHOT</version>
             <scope>compile</scope>
         </dependency>
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter</artifactId>
+            <version>5.9.2</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>com.github.seeseemelk</groupId>
+            <artifactId>MockBukkit-v1.19</artifactId>
+            <version>2.144.3</version>
+            <scope>test</scope>
+        </dependency>
     </dependencies>
 
     <!-- Build information -->