Added new textEscape method

Added new textEscape method that maps to the LCM rules Escape text block.

Closes #31 (closed)

src/main/java/org/etsi/osl/osom/lcm/LcmBaseExecutor.java

 package org.etsi.osl.osom.lcm;
 
+import java.io.File;
 import java.io.IOException;
+import java.time.LocalDate;
+import java.time.LocalTime;
 import java.time.OffsetDateTime;
 import java.time.ZoneOffset;
 import java.util.ArrayList;
@@ -11,15 +14,20 @@ import java.util.function.Consumer;
 import javax.net.ssl.SSLException;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.core.exc.StreamWriteException;
 import com.fasterxml.jackson.core.type.TypeReference;
+import com.fasterxml.jackson.core.util.DefaultPrettyPrinter;
+import com.fasterxml.jackson.databind.DatabindException;
 import com.fasterxml.jackson.databind.JsonNode;
 import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.ObjectWriter;
 import com.fasterxml.jackson.databind.node.ArrayNode;
 import com.jayway.jsonpath.Configuration;
 import com.jayway.jsonpath.JsonPath;
 import com.jayway.jsonpath.Option;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
+import org.apache.commons.text.StringEscapeUtils;
 import org.etsi.osl.osom.partnerservices.GenericClient;
 import org.etsi.osl.tmf.common.model.Any;
 import org.etsi.osl.tmf.common.model.EValueType;
@@ -126,7 +134,7 @@ public abstract class LcmBaseExecutor {
 
 	}
 
-	private Optional<Characteristic> getCharacteristicByName(String charName) {
+	protected Optional<Characteristic> getCharacteristicByName(String charName) {
 
 		List<Characteristic> serviceCharacteristic;
 		if (lcmspec.getLcmrulephase().equals("PRE_PROVISION") || this.vars.getService() == null) {
@@ -225,19 +233,31 @@ public abstract class LcmBaseExecutor {
 		return -1;
 	}
 
+
 	public String getCharValAsString(String charName) {
-		logger.debug("getCharValAsString " + charName);
-		Optional<Characteristic> c = getCharacteristicByName(charName);
+		Optional<Characteristic> characteristic = getCharacteristicByName(charName);
 
-		if (c.isPresent()) {
-			logger.debug("getCharValAsString " + c.get().getValue().getValue());
-			return c.get().getValue().getValue();
+		logger.info("Getting characteristic value as a string...");
+	
+		if (characteristic.isPresent()) {
+			return characteristic.get().getValue().getValue();
 		}
-
-		logger.debug("getCharValAsString NULL ");
+	
 		return null;
+	}
+
 
+	public String escapeText(String s) {
+		if (s == null || s.isEmpty()) {
+			logger.debug("escapeText NULL ");
+			return null;
+		}
+
+		logger.info("Escaping string...");
+
+		return "\"" + StringEscapeUtils.escapeJava(s) + "\"";
 	}
+	
 
 	public Boolean getCharValFromBooleanType(String charName) {
 		logger.debug("getCharValFromBooleanType " + charName);