Add initial project structure with core functionality

- Created a new Go module named 'teleport' for secure port forwarding.
- Added essential files including .gitignore, LICENSE, and README.md with project details.
- Implemented configuration management with YAML support in config package.
- Developed core client and server functionalities for handling port forwarding.
- Introduced DNS server capabilities and integrated logging with sanitization.
- Established rate limiting and metrics tracking for performance monitoring.
- Included comprehensive tests for core components and functionalities.
- Set up CI workflows for automated testing and release management using Gitea actions.

pkg/version/version.go

@@ -0,0 +1,47 @@
+package version
+
+import (
+	"fmt"
+	"runtime"
+)
+
+// These variables are set during build time via ldflags
+var (
+	Version   = "dev"
+	GitCommit = "unknown"
+	BuildDate = "unknown"
+	GoVersion = runtime.Version()
+	Platform  = fmt.Sprintf("%s/%s", runtime.GOOS, runtime.GOARCH)
+)
+
+// Info holds version information
+type Info struct {
+	Version   string `json:"version"`
+	GitCommit string `json:"git_commit"`
+	BuildDate string `json:"build_date"`
+	GoVersion string `json:"go_version"`
+	Platform  string `json:"platform"`
+}
+
+// Get returns version information
+func Get() Info {
+	return Info{
+		Version:   Version,
+		GitCommit: GitCommit,
+		BuildDate: BuildDate,
+		GoVersion: GoVersion,
+		Platform:  Platform,
+	}
+}
+
+// String returns a formatted version string
+func String() string {
+	info := Get()
+	return fmt.Sprintf("teleport version %s (commit: %s, built: %s, go: %s, platform: %s)",
+		info.Version, info.GitCommit, info.BuildDate, info.GoVersion, info.Platform)
+}
+
+// Short returns a short version string
+func Short() string {
+	return fmt.Sprintf("teleport %s", Version)
+}