Add SQL support

[clrcrl]

I use Jinja in my SQL when using open source tool dbt, so have been using a version of this package for my highlighting.

One thing that I'm stuck on is getting Jinja highlighting to work within round braces (()), for example, the Jinja in the common table expression does not get highlighted:

with order_payments as (
  select
  order_id
  {% for payment_method in payment_methods -%}
  , sum(case when payment_method = '{{payment_method}}' then amount else 0 end) as {{payment_method}}_amount
  {% endfor -%}
  from {{ ref('base_payments') }}
  group by 1
)
select
*
from order_payments

I suspect that this line is the culprit – any ideas on how to get around it?

[clrcrl]

Never mind, just saw #37 and #33