Team 2 towers functionality merging into main

[The-AhmadAA]

Towers functionality being merged into main. The changes being incorporated are:

• TowerFactory Class created that contains methods for creating the WeaponTower and WallTower entities. (Use weaponTower only at this stage, Walltower is not yet visible) (Refer to Task ticket [Team 2] Tower entity creation #6)
• Tower Entities have had a CostComponent added for interfacing with Economy once the tower is placed.
• PopUpMenuInputComponent added for basic input handling (Refer to Task [Team 2] User tower interaction #11) for integration into Interfaces' creation of Tower Popup Menus
• Weapon Tower animation assets created
• TowerAnimationController Class created - manages animations of WeaponTower
• Tower AITaskController gets added to Weapon tower which runs a NPC detection script. This triggers events which are used to start animations.
• "firingStart" event is triggered when NPC entities are in the line of sight of towers. This event is also intended to be used for triggering the creation of projectiles by ProjectileFactory. (Refer to Task Ticket [Team 2] Towers' Graphics and sound Task #9)

Refer to Feature ticket #5

[MiniSoda17]

A very detailed and well thought out addition to the game, well done!