Add docs for xml process

pom.xml

@@ -41,6 +41,7 @@
     <modules>
         <module>parent-java</module>
         <module>toolkits</module>
+        <module>xml</module>
     </modules>
 
     <properties>
@@ -57,7 +58,8 @@
         <!-- APACHE COMMONS-->
         <commons-io.version>2.8.0</commons-io.version>
         <commons-lang.version>2.6</commons-lang.version>
-        <commons-lang3.version>3.11</commons-lang3.version>
+        <commons-lang3.version>3.12.0</commons-lang3.version>
+        <commons-math3.version>3.6.1</commons-math3.version>
         <commons-cli.version>1.4</commons-cli.version>
         <maven-war-plugin.version>3.0.0</maven-war-plugin.version>
 
@@ -75,9 +77,10 @@
         <!-- DATA STRUCTURES -->
         <jackson.version>2.12.4</jackson.version>
 
-        <!-- Test -->
+        <!-- TEST -->
         <junit4.version>4.13.2</junit4.version>
         <junit5.version>5.7.0</junit5.version>
+        <mockito-core.version>3.12.4</mockito-core.version>
         <hamcrest.version>2.2</hamcrest.version>
         <hamcrest-all.version>1.3</hamcrest-all.version>
         <assertj.version>3.17.2</assertj.version>
@@ -95,6 +98,7 @@
         <maven-compiler-plugin.version>3.8.1</maven-compiler-plugin.version>
         <logback-classic.version>1.2.5</logback-classic.version>
         <rest-assured.version>3.1.1</rest-assured.version>
+
     </properties>
 
 
@@ -114,10 +118,15 @@
             <artifactId>commons-compress</artifactId>
             <version>1.20</version>
         </dependency>
+        <dependency>
+            <groupId>org.apache.commons</groupId>
+            <artifactId>commons-lang3</artifactId>
+            <version>${commons-lang3.version}</version>
+        </dependency>
         <dependency>
             <groupId>org.apache.commons</groupId>
             <artifactId>commons-math3</artifactId>
-            <version>3.6.1</version>
+            <version>${commons-math3.version}</version>
         </dependency>
         <dependency>
             <groupId>org.apache.velocity</groupId>
@@ -264,6 +273,12 @@
             <version>${hamcrest-all.version}</version>
             <scope>test</scope>
         </dependency>
+        <dependency>
+            <groupId>org.mockito</groupId>
+            <artifactId>mockito-core</artifactId>
+            <version>${mockito-core.version}</version>
+            <scope>test</scope>
+        </dependency>
     </dependencies>
 
     <build>