Allow users to get ETemplateType based on String input (#22)

## Description

Adds method that returns ETemplateType based on String value.

## Type of Change

* New feature (non-breaking change which adds functionality)

## Checklist

- [x] My code follows the style guidelines of this project
- [x] I have performed a self-review of my own code
- [x] I have commented my code, particularly in hard-to-understand areas
- [x] My changes generate no new warnings

Signed-off-by: Jakub Stejskal <[email protected]>

src/main/java/io/skodjob/datagenerator/enums/ETemplateType.java

@@ -64,4 +64,19 @@ public enum ETemplateType {
     public String getTemplateName() {
         return templateName;
     }
+
+    /**
+     * Gets the name of the template based on String name
+     *
+     * @param value string representation of template name
+     * @return specific template
+     */
+    public static ETemplateType getFromString(String value) {
+        for (ETemplateType type : values()) {
+            if (type.toString().equalsIgnoreCase(value)) {
+                return type;
+            }
+        }
+        return null;
+    }
 }