Function split_templates 

pub fn split_templates(
    templates: Vec<Template>,
    max_size: usize,
) -> Vec<Template>

Splits a list of templates into smaller templates if they are too large.

Warning: There are a few assumptions made in this function:

• The function depth of individual blocks do not matter.
• Global scope is not overly used (i.e. if statements should be a few blocks maximum).
• Non-function templates cannot be split.