Automatically convert dbus types into rust types

[SeaDve]

Currently, we do them manually as seen in the link. It would be great to automatically map them and create exceptions for cases like &[&str].

gsettings-macro/src/generators/mod.rs

Lines 52 to 60 in 278be5a

	// Built ins
	this.insert_type("b", Context::new("bool"));
	this.insert_type("i", Context::new("i32"));
	this.insert_type("u", Context::new("u32"));
	this.insert_type("x", Context::new("i64"));
	this.insert_type("t", Context::new("u64"));
	this.insert_type("d", Context::new("f64"));
	this.insert_type("(ii)", Context::new("(i32, i32)"));
	this.insert_type("as", Context::new_dissimilar("&[&str]", "Vec<String>"));