* patterns: Rewrite most of the evaluator to mainly use polymorphism instead of just RTTI
* patterns: Fixed a couple of AST memory leaks
* patterns: Parse string operations correctly
* patterns: Various fixes and cleanup
* patterns: Implement primitive function definitions
Function parameters now need to provide their type in the definition
* patterns: Added function variable definition and assignment
* patterns: Added remaining function statements
* patterns: Added unsized and while-sized arrays
* patterns: Added multi variable declarations to functions
* patterns: Added std::format built-in function
* patterns: Allow passing custom types to functions
* patterns: Added attributes and new "format" attribute
* patterns: Use libfmt for std::print instead of custom version
* patterns: Remove unnecessary string compare function
* pattern: Fix preprocessor directives
* patterns: Fix unit tests
* patterns: Added cast expression
* patterns: Handle endianess in function parameters
* patterns: Added casting to different endian
* patterns: Added 'str' type for functions
