Rework many parts and move some components into the core module

samples/sample_program/build.gradle

@@ -12,9 +12,11 @@ repositories {
     mavenCentral()
 }
 apply from: "$rootDir/deps/jackson.gradle"
+apply from: "$rootDir/deps/slf4j.gradle"
 
 dependencies {
     implementation files(project(':library').jar.archivePath)
+    implementation group: 'org.slf4j', name: 'slf4j-simple', version: '2.0.0-alpha1'
 }
 
 compileJava.dependsOn(project(':library').jar)