Include LICENSE in the generated jar under META-INF.

See google/guava#6468 and google/guava#6477.

I cowardly did not look into Auto and its many pom.xml files. And I gave up on jimfs when its jar didn't end up containing the license... maybe somehow related to how it has other files autogenerated into `META-INF`??

RELNOTES=n/a
PiperOrigin-RevId: 530400894

Author: cpovirk

core/pom.xml

@@ -61,6 +61,13 @@
           <exclude>**/*.gwt.xml</exclude>
         </excludes>
       </resource>
+      <resource>
+        <directory>..</directory>
+        <includes>
+          <include>LICENSE</include>
+        </includes>
+        <targetPath>META-INF</targetPath>
+      </resource>
     </resources>
     <testResources>
       <testResource><directory>src/test/java</directory></testResource>

extensions/java8/pom.xml

@@ -25,6 +25,15 @@
     </dependency>
   </dependencies>
   <build>
+    <resources>
+      <resource>
+        <directory>../..</directory>
+        <includes>
+          <include>LICENSE</include>
+        </includes>
+        <targetPath>META-INF</targetPath>
+      </resource>
+    </resources>
     <plugins>
       <plugin>
         <artifactId>maven-javadoc-plugin</artifactId>

extensions/liteproto/pom.xml

@@ -44,6 +44,15 @@
     </dependency>
   </dependencies>
   <build>
+    <resources>
+      <resource>
+        <directory>../..</directory>
+        <includes>
+          <include>LICENSE</include>
+        </includes>
+        <targetPath>META-INF</targetPath>
+      </resource>
+    </resources>
     <extensions>
       <extension>
         <groupId>kr.motd.maven</groupId>

extensions/proto/pom.xml

@@ -46,6 +46,15 @@
     </dependency>
   </dependencies>
   <build>
+    <resources>
+      <resource>
+        <directory>../..</directory>
+        <includes>
+          <include>LICENSE</include>
+        </includes>
+        <targetPath>META-INF</targetPath>
+      </resource>
+    </resources>
     <extensions>
       <extension>
         <groupId>kr.motd.maven</groupId>

extensions/re2j/pom.xml

@@ -25,12 +25,19 @@
     </dependency>
   </dependencies>
   <build>
+    <resources>
+      <resource>
+        <directory>../..</directory>
+        <includes>
+          <include>LICENSE</include>
+        </includes>
+        <targetPath>META-INF</targetPath>
+      </resource>
+    </resources>
     <plugins>
       <plugin>
         <artifactId>maven-javadoc-plugin</artifactId>
       </plugin>
     </plugins>
   </build>
 </project>
-
-