add group inside Element struct in periodic_table crate + add ruff idea/structure for variation calculation and drawing

Cargo.toml

@@ -6,4 +6,4 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-periodic_table = "0.5.0"
+periodic_table = { version = "0.5.0", path = "../periodic_table/" }

src/draw/format.rs

@@ -0,0 +1,43 @@
+/*
+     CH3 CH3 CH3 CH3
+      |   |   |   |
+CH3---C---C---C---C---CH3
+      |   |   |   |
+     CH3 CH3 CH3 CH3
+
+
+NAME
+
+
+      \_ || _/
+      _ \||/_
+         \/
+      H--C
+
+
+
+
+
+
+Location:
+
+LU  U  RU
+L   C   R
+LD  D  RD
+
+
+
+
+
+111
+
+LU:
+y
+\_
+  \
+  x
+
+U:
+
+
+*/

src/main.rs

@@ -1,9 +1,11 @@
 #![allow(clippy::unnecessary_unwrap)]
 
 mod parse;
+mod draw;
+mod variations;
 
-use parse::parse;
 use std::env;
+use parse::parse;
 
 
 fn main() {