task: add icons

Author: mrdav30

.assets/icon_128x128.png

@@ -12,6 +12,12 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "FixedMathSharp.Editor", "sr
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "FixedMathSharp.Tests", "tests\FixedMathSharp.Tests\FixedMathSharp.Tests.csproj", "{86CD72E6-2A40-494C-9D9B-A38EF90A12A8}"
 EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution Items", "{882324AE-67F3-4F5B-8485-6EF324A15CBF}"
+	ProjectSection(SolutionItems) = preProject
+		LICENSE.md = LICENSE.md
+		README.md = README.md
+	EndProjectSection
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU

.assets/icon_256x256.png

@@ -1,4 +1,8 @@
-# FixedMathSharp Library
+# FixedMathSharp
+
+<p align="center">
+  <img src=".assets/icon_128x128.png" alt="FixedMathSharp Icon" width="200"/>
+</p>
 
 **FixedMathSharp** is a high-precision, fixed-point mathematics library
 designed to enable deterministic, efficient arithmetic operations. It

.assets/icon_512x512.png

@@ -5,6 +5,10 @@
 	<ImplicitUsings>disable</ImplicitUsings>
     <Nullable>enable</Nullable>
   </PropertyGroup>
+  <PropertyGroup>
+    <PackageIcon>../../../.assets/icon_256x256.png</PackageIcon>
+    <PackageIconUrl>https://raw.githubusercontent.com/mrdav30/fixedmathsharp/main/.assets/icon_256x256.png</PackageIconUrl>
+  </PropertyGroup>
   <PropertyGroup>
     <UnityVersion>2022.3.20f1</UnityVersion>
     <OSInstallRootPath>C:\Program Files</OSInstallRootPath>

FixedMathSharp.sln

@@ -5,6 +5,10 @@
     <ImplicitUsings>disable</ImplicitUsings>
     <Nullable>enable</Nullable>
   </PropertyGroup>
+  <PropertyGroup>
+    <PackageIcon>../../../.assets/icon_256x256.png</PackageIcon>
+    <PackageIconUrl>https://raw.githubusercontent.com/mrdav30/fixedmathsharp/main/.assets/icon_256x256.png</PackageIconUrl>
+  </PropertyGroup>
   <PropertyGroup>
     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
     <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>