feat(project): initialize Spring Boot weblog project with Gradle modules

weblog-module-common/build.gradle.kts

@@ -0,0 +1,14 @@
+plugins {
+    java
+}
+
+dependencies {
+
+    // guava
+    implementation("com.google.guava:guava:33.5.0-jre")
+    // commons-lang3
+    implementation("org.apache.commons:commons-lang3:3.20.0")
+
+    // test
+    testImplementation("org.springframework.boot:spring-boot-starter-test")
+}