begin pulling versions into buildSrc/Versions

common/api/core/build.gradle.kts

@@ -1,3 +1,5 @@
+import com.dfsek.terra.Versions
+
 dependencies {
     shadedApi(project(":common:api:util"))
     shadedApi(project(":common:api:noise"))
@@ -6,7 +8,7 @@ dependencies {
     
     shadedApi("net.jafama:jafama:2.3.2")
     
-    shadedApi("org.slf4j:slf4j-api:1.7.32")
+    shadedApi("org.slf4j", "slf4j-api", Versions.Libraries.slf4j)
     
     shadedApi("cloud.commandframework", "cloud-core", "1.6.1")
 }