Implemented Dijkstra's shortest path; added Node struct

Author: an-Iceberg

Cargo.lock

@@ -1,13 +1,13 @@
 [package]
 name = "rust_graph_visualiser"
-version = "0.1.1"
+version = "0.2.0"
 edition = "2021"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
 itertools = "0.11.0"
-macroquad = { version = "0.3.25" }
+macroquad = { version = "0.4.2" }
 
 [dev-dependencies]
 rand = { version = "0.8.5" }