[build] Restructure to composite build

conventions/src/main/kotlin/de.siphalor.tweed5.minecraft.mod.base.gradle.kts

@@ -0,0 +1,47 @@
+plugins {
+	`maven-publish`
+	alias(libs.plugins.shadow)
+	java
+	`java-library`
+	id("de.siphalor.tweed5.minecraft.mod.component")
+}
+
+tasks.shadowJar {
+	relocate("org.apache.commons", "de.siphalor.tweed5.shadowed.org.apache.commons")
+}
+
+val minecraftModJar = tasks.register<Jar>("minecraftModJar") {
+	group = LifecycleBasePlugin.BUILD_GROUP
+
+	from(zipTree(tasks.shadowJar.get().archiveFile))
+
+	destinationDirectory.set(layout.buildDirectory.dir("minecraftModLibs"))
+}
+tasks.assemble {
+	dependsOn(minecraftModJar)
+}
+
+val minecraftModSourcesJar = tasks.register<Jar>("minecraftModSourcesJar") {
+	group = LifecycleBasePlugin.BUILD_GROUP
+
+	from(zipTree(tasks.named<Jar>("sourcesJar").get().archiveFile))
+
+	archiveClassifier = "sources"
+	destinationDirectory.set(layout.buildDirectory.dir("minecraftModLibs"))
+}
+
+artifacts.add("minecraftModElements", minecraftModJar)
+artifacts.add("minecraftModSourcesElements", minecraftModSourcesJar)
+
+publishing {
+	publications {
+		create<MavenPublication>("minecraftMod") {
+			groupId = "${project.group}.minecraft"
+			artifactId = project.name
+			version = project.version.toString()
+
+			from(components["minecraftMod"])
+		}
+	}
+}
+