2024: Add solution for Day 7

Author: dcoles

2024/README.md

@@ -16,7 +16,7 @@ cargo run --bin day01
 4. [Ceres Search](day04) 🌟🌟
 5. [Print Queue](day05) 🌟🌟
 6. [Guard Gallivant](day06) 🌟🌟
-7. [](day07)
+7. [Bridge Repair](day07) 🌟🌟
 8. [](day08)
 9. [](day09)
 10. [](day10)

2024/day07/example1.txt

@@ -0,0 +1,9 @@
+190: 10 19
+3267: 81 40 27
+83: 17 5
+156: 15 6
+7290: 6 8 6 15
+161011: 16 10 13
+192: 17 8 14
+21037: 9 7 18 13
+292: 11 6 16 20