Add JPMS module

Author: mikomikotaishi

api/src/main/java/module-info.java

@@ -0,0 +1,12 @@
+module club.minnced.discord.jdave {
+    requires java.base;
+    requires transitive net.dv8tion.jda;
+    requires org.jspecify;
+    requires org.slf4j;
+
+    exports club.minnced.discord.jdave;
+    exports club.minnced.discord.jdave.ffi;
+    exports club.minnced.discord.jdave.interop;
+    exports club.minnced.discord.jdave.manager;
+    exports club.minnced.discord.jdave.utils;
+}