feat: add basic core module structure

core/build.gradle

@@ -0,0 +1,8 @@
+
+dependencies {
+    api project(':api')
+
+    testImplementation(testFixtures(project(":api")))
+
+    testFixturesImplementation(testFixtures(project(':api')))
+}

core/src/main/java/net/silthus/template/core/Empty.java

@@ -0,0 +1,6 @@
+package net.silthus.template.core;
+
+public class Empty {
+
+    // TODO: add your use-cases and business rules into core
+}

core/src/test/java/net/silthus/template/core/CoreTests.java

@@ -0,0 +1,11 @@
+package net.silthus.template.core;
+
+import org.junit.jupiter.api.Test;
+
+class CoreTests {
+
+    @Test
+    void given_empty_core_then_tests_are_executable() {
+        // TODO: add your use-cases and business rules into core
+    }
+}

core/src/test/resources/junit-platform.properties

@@ -0,0 +1,20 @@
+#
+# sChat, a Supercharged Minecraft Chat Plugin
+# Copyright (C) Silthus <https://www.github.com/silthus>
+# Copyright (C) sChat team and contributors
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+#
+
+junit.jupiter.displayname.generator.default = org.junit.jupiter.api.DisplayNameGenerator$ReplaceUnderscores