Add shared packages

src/Tribufu.Logging/LogLevel.cs

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+// Copyright (c) Tribufu. All Rights Reserved.
+// SPDX-License-Identifier: MIT
+
+namespace Tribufu.Logging
+{
+    public enum LogLevel : byte
+    {
+        Off = 0,
+
+        Trace = 1,
+
+        Debug = 2,
+
+        Info = 3,
+
+        Warn = 4,
+
+        Error = 5,
+
+        All = 6,
+    }
+}

src/Tribufu.Logging/Logger.cs

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+// Copyright (c) Tribufu. All Rights Reserved.
+// SPDX-License-Identifier: MIT
+
+using System;
+
+namespace Tribufu.Logging
+{
+    public static class Logger
+    {
+        private static LogLevel _level = LogLevel.Off;
+
+        public static void Initialize(LogLevel level = LogLevel.Off)
+        {
+            _level = level;
+        }
+
+        public static void Info(string message)
+        {
+            Log(LogLevel.Info, message, ConsoleColor.Green);
+        }
+
+        public static void Warn(string message)
+        {
+            Log(LogLevel.Warn, message, ConsoleColor.Yellow);
+        }
+
+        public static void Error(string message)
+        {
+            Log(LogLevel.Error, message, ConsoleColor.Red);
+        }
+
+        public static void Debug(string message)
+        {
+            Log(LogLevel.Debug, message, ConsoleColor.White);
+        }
+
+        public static void Trace(string message)
+        {
+            Log(LogLevel.Trace, message, ConsoleColor.Gray);
+        }
+
+        private static void Log(LogLevel level, string message, ConsoleColor color)
+        {
+            if (_level == LogLevel.Off)
+            {
+                return;
+            }
+
+            if (_level == LogLevel.All || level >= _level)
+            {
+                var defaultColor = Console.ForegroundColor;
+                Console.ForegroundColor = color;
+                var timestamp = DateTime.Now.ToString("yyyy-MM-ddTHH:mm:ss");
+                Console.WriteLine($"[{timestamp}] [{level.ToString().ToUpper()}]: {message}");
+                Console.ForegroundColor = defaultColor;
+            }
+        }
+    }
+}

src/Tribufu.Logging/README.md

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+# Tribufu

src/Tribufu.Logging/Tribufu.Logging.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+    <PropertyGroup>
+        <PackageId>Tribufu.Logging</PackageId>
+        <Description>Tribufu Logging Extensions</Description>
+        <PackageReadmeFile>README.md</PackageReadmeFile>
+    </PropertyGroup>
+    <PropertyGroup>
+        <AppDesignerFolder>Properties</AppDesignerFolder>
+        <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
+        <OutputType>Library</OutputType>
+        <TargetFrameworks>netstandard2.0;net45;net5.0</TargetFrameworks>
+    </PropertyGroup>
+    <ItemGroup>
+        <None Include="README.md" Pack="true" PackagePath="\" />
+    </ItemGroup>
+    <ItemGroup>
+    </ItemGroup>
+</Project>