Issue #109: Add Maven compilation testing

Author: Anmol202005

config/suppressions.xml

@@ -5,6 +5,7 @@
         "https://checkstyle.org/dtds/suppressions_1_1.dtd">
 
 <suppressions>
+    <suppress checks=".*" files="[\\/]test[\\/]resources[\\/]"/>
     <suppress checks="MissingJavadocType" files=".*"/>
     <suppress checks="JavadocVariable" files=".*"/>
     <suppress checks="MissingJavadocMethod" files=".*"/>

pom.xml

@@ -145,6 +145,26 @@
                 </configuration>
             </plugin>
 
+            <plugin>
+                <groupId>org.codehaus.mojo</groupId>
+                <artifactId>build-helper-maven-plugin</artifactId>
+                <version>3.6.1</version>
+                <executions>
+                    <execution>
+                        <id>add-test-source</id>
+                        <phase>process-resources</phase>
+                        <goals>
+                            <goal>add-test-source</goal>
+                        </goals>
+                        <configuration>
+                            <sources>
+                                <source>src/test/resources</source>
+                            </sources>
+                        </configuration>
+                    </execution>
+                </executions>
+            </plugin>
+
             <!-- Checkstyle plugin for code style regulation -->
 
             <plugin>