Moved maven artifact to spigot library

eco-core/core-plugin/build.gradle

@@ -2,8 +2,8 @@ group 'com.willfp'
 version rootProject.version
 
 dependencies {
-    implementation 'org.apache.maven:maven-artifact:3.0.3'
     implementation 'org.bstats:bstats-bukkit:1.7'
+    compileOnly 'org.apache.maven:maven-artifact:3.0.3'
     compileOnly 'com.google.code.gson:gson:2.8.7'
     compileOnly 'org.spigotmc:spigot-api:1.17-R0.1-SNAPSHOT'
     compileOnly project(":eco-core:core-proxy")
@@ -19,8 +19,6 @@ dependencies {
     compileOnly 'com.github.jiangdashao:matrix-api-repo:317d4635fd'
     compileOnly 'com.gmail.nossr50.mcMMO:mcMMO:2.1.157'
     compileOnly 'me.clip:placeholderapi:2.10.9'
-
-    // TODO: Find the actual repo and way of installing things. Environment variables seem like a pain.
     compileOnly 'io.th0rgal:oraxen:1.83.1'
 
     compileOnly 'com.github.LoneDev6:API-ItemsAdder:2.3.8'

eco-core/core-plugin/src/main/resources/plugin.yml

@@ -27,4 +27,5 @@ softdepend:
   - mcMMO
   - CombatLogX
 libraries:
-  - org.reflections:reflections:0.9.12
+  - org.reflections:reflections:0.9.12
+  - org.apache.maven:maven-artifact:3.0.3