render scoped enums

#feat

Author: alandefreitas

share/mrdocs/addons/generator/common/partials/symbol/signature/enum.hbs

@@ -1,2 +1,2 @@
-enum {{>symbol/name .~}}
+enum {{#if isScoped}}class {{/if}}{{>symbol/name .~}}
 {{#if type}} : {{>type/declarator type}}{{/if}};

test-files/golden-tests/metadata/enum.adoc

@@ -111,7 +111,7 @@ Declared in `<enum.cpp>`
 
 [source,cpp,subs="verbatim,replacements,macros,-callouts"]
 ----
-enum E2 : int;
+enum class E2 : int;
 ----
 
 === Members
@@ -148,7 +148,7 @@ Declared in `<enum.cpp>`
 
 [source,cpp,subs="verbatim,replacements,macros,-callouts"]
 ----
-enum E3 : char;
+enum class E3 : char;
 ----
 
 === Members

test-files/golden-tests/metadata/enum.html

@@ -131,7 +131,7 @@ <h3>Synopsis</h3>
 Declared in <code>&lt;enum.cpp&gt;</code></div>
 <pre>
 <code class="source-code cpp">
-enum E2 : int;
+enum class E2 : int;
 </code>
 </pre>
 </div>
@@ -175,7 +175,7 @@ <h3>Synopsis</h3>
 Declared in <code>&lt;enum.cpp&gt;</code></div>
 <pre>
 <code class="source-code cpp">
-enum E3 : char;
+enum class E3 : char;
 </code>
 </pre>
 </div>