Add flyway database migration tool. Read diva news from database

src/main/resources/db/migration/mysql/V2__property_table.sql

@@ -0,0 +1,24 @@
+--
+-- テーブルの構造 `property`
+--
+
+CREATE TABLE `property`
+(
+    `id`             bigint(20) NOT NULL PRIMARY KEY AUTO_INCREMENT,
+    `property_key`   varchar(255) COLLATE utf8mb4_unicode_ci DEFAULT NULL,
+    `property_value` varchar(255) COLLATE utf8mb4_unicode_ci DEFAULT NULL
+) ENGINE = InnoDB
+  DEFAULT CHARSET = utf8mb4
+  COLLATE = utf8mb4_unicode_ci;
+
+--
+-- Indexes for table `property`
+--
+ALTER TABLE `property`
+    ADD UNIQUE KEY `UK_ekbti34ksu6o2sfms9yumvp4o` (`property_key`);
+COMMIT;
+
+INSERT INTO `property` (id, property_key, property_value)
+VALUES (1, 'diva_news', 'Server Running                  No other news');
+INSERT INTO `property` (id, property_key, property_value)
+VALUES (2, 'diva_warning', 'Network Service Running');

src/main/resources/db/migration/sqlite/V2__property_table.sql

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+-- Table: property
+CREATE TABLE property
+(
+    id             BIGINT NOT NULL,
+    property_key   VARCHAR(255) UNIQUE,
+    property_value VARCHAR(255),
+    PRIMARY KEY (
+                 id
+        )
+);