config: change default config to use toml-based configuration

toml-config/src/config/value.rs

@@ -0,0 +1,17 @@
+use crate::{
+    config::parser::{ParseResult, Parser},
+    toml::{toml_span::Span, toml_value::Value},
+};
+
+impl Value {
+    pub fn parse<P: Parser>(&self, span: Span, parser: &mut P) -> ParseResult<P> {
+        match self {
+            Value::String(a) => parser.parse_string(span, a),
+            Value::Integer(a) => parser.parse_integer(span, *a),
+            Value::Float(a) => parser.parse_float(span, *a),
+            Value::Boolean(a) => parser.parse_bool(span, *a),
+            Value::Array(a) => parser.parse_array(span, a),
+            Value::Table(a) => parser.parse_table(span, a),
+        }
+    }
+}