feat(2018): refactor days 1-3 to use aoc-rust-common

Migrated the first three days of 2018 to the shared  framework. This includes updating dependencies, refactoring solutions to implement the  trait, and setting up a unified runner in . Input data files have been moved to a new  directory.

Author: markkovari

2018/Cargo.toml

@@ -6,6 +6,7 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
+aoc-rust-common = { path = "../aoc-rust-common" }
 anyhow = "1.0.75"
 chrono = "0.4.26"
 failure = "0.1.8"