Added Visual Studio project generation.

util/vscode_project_template/launch.json.jinja

@@ -1,8 +1,8 @@
 {
     "configurations": [
-    {% for executable in project.executables %}
-    {% for build_type in project.build_types %}
-    {% set build_type_name = build_type | capitalize -%}
+    {%- for executable in project.executables -%}
+    {%- for build_type in project.build_types -%}
+    {%- set build_type_name = build_type | capitalize %}
         {
             "name": "{{ executable.name }} ({{ build_type | capitalize }})",
             "type": "cppvsdbg",
@@ -12,9 +12,10 @@
             "stopAtEntry": false,
             "cwd": "${workspaceFolder}",
             "environment": [],
-            "console": "integratedTerminal"
-        }
-    {% endfor %}
-    {% endfor %}
+            "console": "integratedTerminal",
+            "preLaunchTask": "{{ executable.name }} {{ build_type_name }}"
+        },
+    {%- endfor %}
+    {%- endfor %}
     ]
 }