chore: doc-producer and doc-creator handling in HTML and AsciiDoc format

Author: fugerit79

fj-doc-freemarker/src/main/resources/fj_doc_freemarker_config/template/asciidoc.ftl

@@ -3,6 +3,8 @@
 <#if (docBase.infoDocAuthor)??>${docBase.infoDocAuthor}</#if>
 <#if (docBase.infoDocSubject)??>:description: ${docBase.infoDocSubject}</#if>
 <#if (docBase.infoDocLanguage)??>:lang: ${docBase.infoDocLanguage}</#if>
+<#if (docBase.infoDocProducer)??>:generator: ${docBase.infoDocProducer}<#else>:generator: Venus Fugerit Doc over Apache FreeMarker</#if>
+<#if (docBase.infoDocCreator)??>:created-by: ${docBase.infoDocCreator}<#else>:created-by: Venus Fugerit Doc (https://venusdocs.fugerit.org)</#if>
 
 <#list docBase.docBody.elementList as item>
 	<@doc_element.handleElement current=item/>

fj-doc-freemarker/src/main/resources/fj_doc_freemarker_config/template/html_doc.ftl

@@ -13,8 +13,10 @@
 		<#if (docBase.stableInfo['html-charset'])??><meta charset="${docBase.stableInfo['html-charset']}"></#if>
 		<#if (docBase.infoDocAuthor)??><meta name="author" content="${docBase.infoDocAuthor}"/></#if>
 		<#if (docBase.infoDocSubject)??><meta name="description" content="${docBase.infoDocSubject}"/></#if>
-		<#if (docBase.infoDocLanguage)??><meta http-equiv="content-language" content="${docBase.infoDocLanguage}"/></#if>		
-		<meta name="doc-version-compatibility" content="${comp}"/>
+		<#if (docBase.infoDocLanguage)??><meta http-equiv="content-language" content="${docBase.infoDocLanguage}"/></#if>
+        <#if (docBase.infoDocProducer)??><meta http-equiv="generator" content="${docBase.infoDocProducer}"/><#else><meta http-equiv="generator" content="Venus Fugerit Doc over Apache FreeMarker"/></#if>
+        <#if (docBase.infoDocCreator)??><meta http-equiv="created-by" content="${docBase.infoDocCreator}"/><#else><meta http-equiv="created-by" content="Venus Fugerit Doc (https://venusdocs.fugerit.org)"/></#if>
+        <meta name="doc-version-compatibility" content="${comp}"/>
 		${docBase.stableInfo['html-add-to-head']!''}
 		<#if (docBase.stableInfo['html-css-style'])??>
 		<style type="text/css">

fj-doc-freemarker/src/test/resources/coverage/xml/asciidoc.xml

@@ -13,6 +13,8 @@
 	<info name="doc-subject">fj doc venus sample source xml</info>
 	<info name="doc-author">fugerit79</info>
 	<info name="doc-language">en</info>
+      <info name="doc-producer">My AsciiDoc producer</info>
+      <info name="doc-creator">My AsciiDoc creator</info>
 	<!-- additional properties -->
 	<info name="set-total-page">true</info>
 	<info name="html-css-link">/css/test.css</info>