chore: exclude generated binding classes from PMD and CPD checks (#622)

Add PMD excludes for generated binding classes that were being flagged
for code style violations and duplicate code detection. These classes
are auto-generated from Metaschema modules and should not be subject
to static analysis.

Excluded packages:
- databind: model/metaschema/binding and config/binding
- metaschema-testing: model/testing/testsuite

Author: david-waltermire

databind/pom.xml

@@ -103,6 +103,11 @@
 							<ruleset>src/main/config/pmd/ruleset.xml</ruleset>
 							<ruleset>src/main/config/pmd/field-naming-ruleset.xml</ruleset>
 						</rulesets>
+						<!-- Exclude generated binding classes from PMD and CPD -->
+						<excludes>
+							<exclude>**/dev/metaschema/databind/model/metaschema/binding/*.java</exclude>
+							<exclude>**/dev/metaschema/databind/config/binding/*.java</exclude>
+						</excludes>
 					</configuration>
 				</plugin>
 				<plugin>

metaschema-testing/pom.xml

@@ -73,6 +73,10 @@
 							<ruleset>src/main/config/pmd/ruleset.xml</ruleset>
 							<ruleset>src/main/config/pmd/field-naming-ruleset.xml</ruleset>
 						</rulesets>
+						<!-- Exclude generated binding classes from PMD and CPD -->
+						<excludes>
+							<exclude>**/dev/metaschema/model/testing/testsuite/**/*.java</exclude>
+						</excludes>
 					</configuration>
 				</plugin>
 			</plugins>