Boilerplate for SqlTestHelper. refs #477
Added new handlers to TemplatePackagingChain. refs #475, #476, #477
Implemented PerRepositoryTemplateFactoryTemplate. refs #475
Implemented PerCustomResultTemplateFactoryTemplate. refs #476
Implemented PerSqlTemplateFactoryTemplate. refs #477
Implemented PerRepositoryTemplateWritingHandlerTemplate. refs #475
Implemented PerCustomResultTemplateWritingHandlerTemplate. refs #476
Implemented PerSqlTemplateWritingHandlerTemplate. refs #477