Implement use of PlaceholderProj and PlaceholderTile

Content/Projectiles/Avali/AvaliHuntingDrone.cs

@@ -15,6 +15,8 @@ namespace ForgottenWawiTech.Content.Projectiles.Avali
         private const float TargetRange = 920f;
         private const float ShotSpeed = 19.5f;
 
+        public override string Texture => "ForgottenWawiTech/Assets/PlaceholderProj";
+
         public override void SetStaticDefaults()
         {
             ProjectileID.Sets.MinionSacrificable[Type] = false;

Content/Projectiles/Avali/AvaliHuntingDroneShot.cs

@@ -6,8 +6,12 @@ using Terraria.ModLoader;
 
 namespace ForgottenWawiTech.Content.Projectiles.Avali
 {
+    
     public class AvaliHuntingDroneShot : ModProjectile
     {
+
+        public override string Texture => "ForgottenWawiTech/Assets/PlaceholderProj";
+        
         public override void SetStaticDefaults()
         {
             ProjectileID.Sets.MinionShot[Type] = true;

Content/Projectiles/Avali/AvaliThermalDrone.cs

@@ -14,6 +14,8 @@ namespace ForgottenWawiTech.Content.Projectiles.Avali
         private const int MarkCooldown = 45;
         private const float MarkRange = 700f;
 
+        public override string Texture => "ForgottenWawiTech/Assets/PlaceholderProj";
+
         public override void SetStaticDefaults()
         {
             ProjectileID.Sets.MinionSacrificable[Type] = false;