feat(apollo-compiler): create diagnostics with source spans

[lrlna]

This PR introduces diagnostics to apollo-compiler. Given SyntaxNode information we have from apollo-parser, we are able to store that information in compiler's Values and create proper source spans.

We are using miette to create diagnostics. Graphical display that miette provides is only available with Display. This means diagnostics can be used in myriads of other use cases that might not need the graphical interface (e.g. wasm).

(almost) all values in apollo-compiler store a pointer back to the AST which can be accessed with ast_node() getter methods.