. + improve build system

kencommandapi-core/build.gradle.kts

@@ -1,47 +0,0 @@
-val scrowToken = providers.gradleProperty("scrowMavenToken")
-    .orElse(providers.environmentVariable("SCROW_MAVEN_TOKEN")).get()
-
-plugins {
-    id("java")
-    id("maven-publish")
-    id("io.freefair.lombok") version "9.2.0"
-}
-
-group = "de.kentoj"
-version = "2.0.2"
-
-repositories {
-    mavenCentral()
-}
-
-dependencies {
-    // https://mvnrepository.com/artifact/org.jetbrains/annotations
-    implementation("org.jetbrains:annotations:26.0.2-1")
-}
-
-publishing {
-    publications {
-        create<MavenPublication>("KenCommandAPI") {
-            groupId = project.group.toString()
-            artifactId = "kencommandapi-core"
-            version = project.version.toString()
-            from(components["java"])
-        }
-    }
-    repositories {
-        maven {
-            name = "scrow"
-            url = uri("http://forge.kentoj.de/api/packages/scrow/maven")
-            isAllowInsecureProtocol = true
-
-            credentials(HttpHeaderCredentials::class) {
-                name = "Authorization"
-                value = "token $scrowToken"
-            }
-
-            authentication {
-                create<HttpHeaderAuthentication>("header")
-            }
-        }
-    }
-}