2020-11-09-create-description-and-reviews-block.md

title	issue
create "Description and Reviews" block	NEXT-11743

Administration

• Added sw-cms-block-product-description-reviews component
• Added sw-cms-preview-product-description-reviews component
• Added productDetailPageElements data property in module/sw-cms/page/sw-cms-detail/index.js to store all product detail page's element names
• Added productDetailBlocks data property in module/sw-cms/page/sw-cms-detail/index.js to store default product detail page's block config
• Added processProductDetailType() method in module/sw-cms/page/sw-cms-detail/index.js to handle adding product detail page's blocks
• Added tooltipDisabled() method in module/sw-cms/page/sw-cms-sidebar/index.js to temporarily show tooltip when layout type is product detail page
• Changed onPageTypeChange() method in module/sw-cms/page/sw-cms-detail/index.js to handle adding blocks that are parts of product detail page
• Removed processHeadingBlock() method in module/sw-cms/page/sw-cms-detail/index.js and use processProductDetailType() instead to handle adding product detail page's blocks