Update Prism Python bindings interface

Add GetProjects, GetProjectTemplates, GetGems, GetProject and GetGem.
CreateProject and UpdateProject and the engine functions are not implemented yet

Code/Tools/ProjectManager/Source/ProjectTemplateInfo.cpp

@@ -0,0 +1,26 @@
+/*
+* All or portions of this file Copyright (c) Amazon.com, Inc. or its affiliates or
+* its licensors.
+*
+* For complete copyright and license terms please see the LICENSE at the root of this
+* distribution (the "License"). All use of this software is governed by the License,
+* or, if provided, by the license below or the license accompanying this file. Do not
+* remove or modify any license notices. This file is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+*
+*/
+
+#include "ProjectTemplateInfo.h"
+
+namespace O3DE::ProjectManager
+{
+    ProjectTemplateInfo::ProjectTemplateInfo(const QString& path)
+        : m_path(path)
+    {
+    }
+
+    bool ProjectTemplateInfo::IsValid() const
+    {
+        return !m_path.isEmpty() && !m_name.isEmpty();
+    }
+} // namespace O3DE::ProjectManager