Enhanced / implemented additional tags and filters

[sogko]

Implemented additional tags based on Shopify's Liquid documentation. Refer to: https://docs.shopify.com/themes/liquid-documentation/tags/

New tags:

• cycle https://docs.shopify.com/themes/liquid-documentation/tags/iteration-tags#cycle
• tablerow https://docs.shopify.com/themes/liquid-documentation/tags/iteration-tags#tablerow
• increment https://docs.shopify.com/themes/liquid-documentation/tags/variable-tags#increment
• decrement https://docs.shopify.com/themes/liquid-documentation/tags/variable-tags#decrement

Enhancements for tags:

• Added with support for include tag: https://docs.shopify.com/themes/liquid-documentation/tags/theme-tags#include
• Added else support for for tag: https://github.com/Shopify/liquid/blob/master/lib/liquid/tags/for.rb

Added additional alias for tags:

• elsif (alias for elseif)

Fixed additional alias for filters

• reversed (alias for reverse)
• divided_by (alias for divideby)