Adds cmake build support.

examples/README.md

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+# TinyTest Examples
+
+This directory contains examples demonstrating how to use TinyTest in different build environments.
+
+## Available Examples
+
+### 1. Standalone Example
+
+Located in the `standalone` directory, this example demonstrates:
+
+- How to use TinyTest in a standalone project with CMake's FetchContent
+- No pre-installation required - TinyTest is automatically downloaded and built
+- Testing multiple functions: arithmetic, string manipulation, prime checking
+- Collecting and reporting test results
+
+[View the Standalone Example](./standalone/)
+
+### 2. Preinstalled Example
+
+Located in the `preinstalled` directory, this example demonstrates:
+
+- How to use TinyTest when it's installed on the system
+- Using CMake's find_package to locate the TinyTest installation
+- Testing a simple calculator application with exception handling
+- The build script automatically installs TinyTest if it's not found
+
+[View the Preinstalled Example](./preinstalled/)
+
+### 3. Sample Project
+
+Located in the `sample_project` directory, this example demonstrates:
+
+- A minimal example that tests a single function
+- Complete build scripts for both Windows and Linux/macOS
+- Clear structure for a small TinyTest project
+
+[View the Sample Project](./sample_project/)
+
+## Building the Examples
+
+Each example includes its own build scripts and instructions. See the README.md file in each example directory for specific details.
+
+### Quick Start
+
+```bash
+# For the standalone example
+cd standalone
+chmod +x build.sh  # On Linux/macOS
+./build.sh         # On Linux/macOS
+build.bat          # On Windows
+
+# For the preinstalled example
+cd preinstalled
+chmod +x build.sh  # On Linux/macOS
+./build.sh         # On Linux/macOS
+build.bat          # On Windows
+
+# For the sample project
+cd sample_project
+chmod +x build.sh  # On Linux/macOS
+./build.sh         # On Linux/macOS
+build.bat          # On Windows
+```
+
+## Choosing the Right Approach
+
+- **Standalone (FetchContent)**: Best for projects where you want to ensure everyone has the same version of TinyTest without requiring a separate installation step.
+
+- **Preinstalled (find_package)**: Best for larger projects or environments where TinyTest is a common dependency shared across multiple projects.
+
+- **Sample Project**: Best for learning the basics of TinyTest with minimal complexity.