Added test case documentation generator

docs/test_cases/t00008.md

@@ -0,0 +1,57 @@
+# t00008 - Template and template template relationships
+## Config
+```yaml
+compilation_database_dir: ..
+output_directory: puml
+diagrams:
+  t00008_class:
+    type: class
+    glob:
+      - ../../tests/t00008/t00008.cc
+    using_namespace:
+      - clanguml::t00008
+    include:
+      namespaces:
+        - clanguml::t00008
+
+```
+## Source code
+```cpp
+#include <array>
+#include <vector>
+
+namespace clanguml {
+namespace t00008 {
+
+using CMP = bool (*)(const int, const int);
+
+template <typename T, typename P = T, CMP = nullptr, int N = 3> class A {
+public:
+    T value;
+    T *pointer;
+    T &reference;
+    std::vector<P> values;
+    std::array<int, N> ints;
+
+    CMP comparator;
+};
+
+template <typename T> struct Vector {
+    std::vector<T> values;
+};
+
+template <typename T, template <typename> typename C> struct B {
+    C<T> template_template;
+};
+
+struct D {
+    B<int, Vector> ints;
+
+    void add(int i) { ints.template_template.values.push_back(i); }
+};
+}
+}
+
+```
+## Generated UML diagrams
+![t00008_class](./t00008_class.png "Template and template template relationships")