feat: update spawntime on selection

[FelipePaluco]

Description

This feature aims to introduce a new feature on selection top menu. You can select a area and then update the Spawntime of all monsters on that area.

This it's very useful when balancing hunts or high populated areas.

Remember that always will be applied the spawn time that is on your monster brush. (To view this brush, you can click on the monster palette)

• Additions:

1. New option on Select option at top menu bar
2. Update several monster spawn times in a selected area using the current value stored in spawntime at monster brush.

How to test so far

1. Get this code, compile and run RME.
2. Select a area on the map with some monsters.
3. Click on the top menu bar "Selection" and click "Update Monster Spawntime on Selection"
4. See the monsters with the new spawntime based on the current value on spawntime field at monster brush.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud