Stat System Redesign (#173)

New stat system implemented to replace the old IStat, IBuff system.

What changed:

- Replaced old Buff / BuffTimed / BuffStacked / BuffValue model with:
  - StatId
  - Stat
  - StatModifier
  - StatModifierKind
  - IStatModifierSource
  - StatModifierSource
  - TimedStatModifierSource
  - StackableStatModifierSource
  - StatSet
- Added layered calculation order: flat, additive percent, multiplicative percent, override, min/max clamp.
- Added source categories for buff, debuff, equipment, passive, upgrade, custom.
- Added stackable timed sources with max stacks and duration refresh on reapply
- Removed drawing concerns from the core stats classes.
- Added StatExampleScene
- Added SimpleStat.cs

Author: SoloByte

Examples/Examples.csproj

@@ -20,12 +20,7 @@
     </ItemGroup>
 
     <ItemGroup>
- <!--
- <Content Include="Resources\**">
-   <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
- </Content>
- -->
-      
+        
     <Content Include="../NOTICE.txt">
       <CopyToOutputDirectory>Always</CopyToOutputDirectory>
     </Content>
@@ -37,7 +32,16 @@
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </Content>
     </ItemGroup>
-
+   
+    <!-- For copying the Resource Directory to the Output Directory -->
+    <!--
+        <ItemGroup>
+            <Content Include="Resources\**">
+                <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+            </Content>
+        </ItemGroup>
+    -->
+    
     <!-- For regular builds -->
     <Target Name="PackResourcesForDev" AfterTargets="Build">
         <PropertyGroup>

Examples/Program.cs

@@ -8,7 +8,6 @@ public static class Program
     public static void Main(string[] args)
     {
 
-        //TODO: Check all modes if they work still!
         var gameSettings = GameSettings.StretchMode("Shape Engine Examples");
 
         var windowSettings = new WindowSettings