Rewrite build scripts

Co-Authored By: Mariell Hoversholm <proximyst@proximyst.com>

Core/build.gradle.kts

@@ -0,0 +1,30 @@
+dependencies {
+    // Expected everywhere.
+    api("org.json:json:20200518")
+    api("javax.annotation:javax.annotation-api:1.3.2")
+
+    // Minecraft expectations
+    compileOnlyApi("com.google.guava:guava:21.0") // Minecraft uses v21.0
+    compileOnlyApi("com.google.code.gson:gson:2.8.0") // Minecraft uses v2.8.0
+
+    // Platform expectations
+    compileOnlyApi("org.yaml:snakeyaml:1.26") // Some platforms provide this
+
+    // Adventure stuff
+    api("net.kyori:adventure-api:4.0.0-SNAPSHOT")
+    api("net.kyori:adventure-text-minimessage:4.0.0-SNAPSHOT")
+
+    // Guice
+    api("com.google.inject:guice:4.2.3")
+    api("com.google.inject.extensions:guice-assistedinject:4.2.3")
+    compileOnlyApi("com.google.code.findbugs:annotations:3.0.1")
+    compileOnlyApi("javax.inject:javax.inject:1")
+
+    // Logging
+    api("org.apache.logging.log4j:log4j-slf4j-impl:2.8.1")
+
+    // Other libraries
+    api("org.khelekore:prtree:1.7.0-SNAPSHOT")
+    api("aopalliance:aopalliance:1.0")
+    api("com.intellectualsites:Pipeline:1.4.0-SNAPSHOT")
+}