Remove JavaLangAccessUtils and adjust test logging

Deletes the obsolete `JavaLangAccessUtils` helper and its unit test from `microsphere-java-core`. It also adds a module-specific `logback-test.xml` in `microsphere-java-core` for `io.microsphere.logging`, while simplifying the shared `microsphere-java-test` logging config by removing the duplicate logger and `additivity="false"` from root.

Author: mercyblitz

microsphere-java-core/src/main/java/io/microsphere/internal/access/JavaLangAccessUtils.java

@@ -0,0 +1,7 @@
+<configuration>
+
+    <logger name="io.microsphere.logging" level="TRACE" additivity="false">
+        <appender-ref ref="STDOUT"/>
+    </logger>
+
+</configuration>

microsphere-java-core/src/test/java/io/microsphere/internal/access/JavaLangAccessUtilsTest.java

@@ -17,16 +17,12 @@
         </encoder>
     </appender>
 
-    <root level="TRACE" additivity="false">
+    <root level="TRACE">
         <appender-ref ref="FILE"/>
     </root>
 
     <logger name="io.microsphere" level="INFO">
         <appender-ref ref="STDOUT"/>
     </logger>
 
-    <logger name="io.microsphere.logging" level="TRACE" additivity="false">
-        <appender-ref ref="STDOUT"/>
-    </logger>
-
 </configuration>