Refactoring

• refactoring to generate better documentation
• removed options that has been deprecated for a long time
• use vim.tbl_{count,is_empty,deep_extend} for easier reading of code

Rust test code fix

Used best practice (clippy) on the test rust code

Small fix to C

Didn't find the functions like char **myfunc();

Capture groups

Only show all capture groups if enabled

Add missing capture groups

v2.1.2

fix: Add missing capture groups

Fix ordering of captures

Also add documentation for the new query generator