converted all explicit dependencies version to maven property

pom.xml

@@ -285,13 +285,13 @@
             <dependency>
                 <groupId>me.xuender</groupId>
                 <artifactId>unidecode</artifactId>
-                <version>0.0.7</version>
+                <version>${dhp.unidecode.version}</version>
             </dependency>
 
             <dependency>
                 <groupId>org.slf4j</groupId>
                 <artifactId>jcl-over-slf4j</artifactId>
-                <version>1.7.25</version>
+                <version>${dhp.slf4j.version}</version>
                 <scope>provided</scope>
             </dependency>
 
@@ -304,7 +304,7 @@
             <dependency>
                 <groupId>com.github.sisyphsu</groupId>
                 <artifactId>dateparser</artifactId>
-                <version>1.0.7</version>
+                <version>${dhp.dateparser.version}</version>
             </dependency>
 
             <dependency>
@@ -316,13 +316,13 @@
             <dependency>
                 <groupId>commons-codec</groupId>
                 <artifactId>commons-codec</artifactId>
-                <version>1.9</version>
+                <version>${dhp.commons.codec.version}</version>
             </dependency>
 
             <dependency>
                 <groupId>commons-io</groupId>
                 <artifactId>commons-io</artifactId>
-                <version>2.4</version>
+                <version>${dhp.commons.io.version}</version>
             </dependency>
 
 
@@ -336,7 +336,7 @@
             <dependency>
                 <groupId>javax.persistence</groupId>
                 <artifactId>javax.persistence-api</artifactId>
-                <version>2.2</version>
+                <version>${dhp.javax.persistence.api.version}</version>
                 <scope>provided</scope>
             </dependency>
 
@@ -357,14 +357,14 @@
         <dependency>
             <groupId>io.swagger.core.v3</groupId>
             <artifactId>swagger-annotations</artifactId>
-            <version>2.1.12</version>
+            <version>${dhp.swagger.annotations.version}</version>
         </dependency>
 
 
         <dependency>
             <groupId>javax.validation</groupId>
             <artifactId>validation-api</artifactId>
-            <version>2.0.1.Final</version>
+            <version>${dhp.validation.api.version}</version>
         </dependency>
 
 
@@ -432,12 +432,23 @@
         <dependency>
             <groupId>com.github.imifou</groupId>
             <artifactId>jsonschema-module-addon</artifactId>
-            <version>1.2.1</version>
+            <version>${dhp.jsonschema.module.addon.version}</version>
         </dependency>
 
     </dependencies>
 
     <properties>
+
+
+        <dhp.dateparser.version>1.0.7</dhp.dateparser.version>
+        <dhp.jsonschema.module.addon.version>1.2.1</dhp.jsonschema.module.addon.version>
+        <dhp.validation.api.version>2.0.1.Final</dhp.validation.api.version>
+        <dhp.swagger.annotations.version>2.1.12</dhp.swagger.annotations.version>
+        <dhp.javax.persistence.api.version>2.2</dhp.javax.persistence.api.version>
+        <dhp.commons.codec.version>1.9</dhp.commons.codec.version>
+        <dhp.commons.io.version>2.4</dhp.commons.io.version>
+        <dhp.slf4j.version>1.7.25</dhp.slf4j.version>
+        <dhp.unidecode.version>0.0.7</dhp.unidecode.version>
         <dhp.swagger-annotations-version>1.5.20</dhp.swagger-annotations-version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>