Add EbeanAgentAutoConfiguration for Spring Boot

src/test/java/io/ebean/spring/boot/EbeanAgentAutoConfigurationTest.java

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+package io.ebean.spring.boot;
+
+import io.ebean.bean.EntityBean;
+import org.junit.Test;
+import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.boot.test.context.SpringBootTest.WebEnvironment;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.test.context.junit4.AbstractJUnit4SpringContextTests;
+import org.unenhanced.Boondoggle;
+import org.unenhanced.Wotsit;
+import static org.assertj.core.api.StrictAssertions.assertThat;
+
+@SpringBootTest(webEnvironment=WebEnvironment.NONE)
+public class EbeanAgentAutoConfigurationTest extends AbstractJUnit4SpringContextTests {
+
+  static {
+    // Validate our test setup. Agent should not be loaded yet, so 'Boondoggle'
+    // should have been enhanced neither at build time nor at load time.
+    assertThat(EntityBean.class.isAssignableFrom(Boondoggle.class)).isFalse();
+  }
+
+  @Configuration
+  @EnableAutoConfiguration
+  public static class Config {
+    /* no beans needed for this test */
+  }
+
+  @Test
+  public void testAgentIsWorking() {
+    // Wotsit is outside of the org.example package that's being enhanced
+    // at build time, so should be picked up by the agent only.
+    assertThat(EntityBean.class.isAssignableFrom(Wotsit.class)).isTrue();
+  }
+}

src/test/java/org/unenhanced/Boondoggle.java

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+package org.unenhanced;
+
+import javax.persistence.Entity;
+import javax.persistence.Id;
+
+// Not in org.example, i.e. not enhanced at build time
+@Entity
+public class Boondoggle {
+  @Id
+  public String name;
+}

src/test/java/org/unenhanced/Wotsit.java

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+package org.unenhanced;
+
+import javax.persistence.Entity;
+import javax.persistence.Id;
+
+// Not in org.example, i.e. not enhanced at build time
+@Entity
+public class Wotsit {
+  @Id
+  public String name;
+}