refactor: Restructure project, enhance ActionField and DTOField generation

This commit refactors the project structure by moving generator-related classes
to a new package (`com.sdk.generators.actionmodels`) and standardizing
template directory names (`src/main/resources/templates`).

It introduces new FreeMarker templates (`actionDTO.ftl`, `actionDTO.extend.ftl`)
and corresponding logic in `GeneratorServices.java` to support the generation
of Data Transfer Object (DTO) classes alongside ActionBeans. The changes
also involve enhancements related to `ActionField` and `DTOField` generation.

Updates to `build.gradle.kts`, `plugin.xml`, and Gradle wrapper files
reflect these structural and functional enhancements.

.idea/.name

@@ -0,0 +1 @@
+ActionModelsGenerator

.idea/dictionaries/project.xml

@@ -2,6 +2,7 @@
   <dictionary name="project">
     <words>
       <w>actionbean</w>
+      <w>actionmodels</w>
     </words>
   </dictionary>
 </component>

.idea/inspectionProfiles/Project_Default.xml

@@ -2,11 +2,13 @@
   <profile version="1.0">
     <option name="myName" value="Project Default" />
     <inspection_tool class="CheckTagEmptyBody" enabled="false" level="WARNING" enabled_by_default="false" />
+    <inspection_tool class="DuplicatedCode" enabled="false" level="WEAK WARNING" enabled_by_default="false" />
     <inspection_tool class="Duplicates" enabled="false" level="WEAK WARNING" enabled_by_default="false" />
     <inspection_tool class="LoggerInitializedWithForeignClass" enabled="false" level="WARNING" enabled_by_default="false">
       <option name="loggerClassName" value="org.apache.log4j.Logger,org.slf4j.LoggerFactory,org.apache.commons.logging.LogFactory,java.util.logging.Logger" />
       <option name="loggerFactoryMethodName" value="getLogger,getLogger,getLog,getLogger" />
     </inspection_tool>
+    <inspection_tool class="PluginXmlI18n" enabled="false" level="WARNING" enabled_by_default="false" />
     <inspection_tool class="UnusedProperty" enabled="false" level="WARNING" enabled_by_default="false" />
   </profile>
 </component>