Merge pull request #7 from Sopo2023/style/#3

feat: add page request

src/main/java/kr/hs/dgsw/SOPO_server_v2/global/page/PageRequest.java

@@ -0,0 +1,19 @@
+package kr.hs.dgsw.SOPO_server_v2.global.page;
+
+public record PageRequest(
+        Long page,
+        Long size) {
+
+    public static PageRequest of(final long page, final long size) {
+        return new PageRequest(page, size);
+    }
+
+    public void validate() {
+        if(page<1) {
+            throw new IllegalArgumentException("Page must over than 0");
+        }
+        if(size<1) {
+            throw new IllegalArgumentException("Size must over than 0");
+        }
+    }
+}