feat: add marquez-cli tool for OpenLineage/Marquez management

Añadido binario CLI en Go para gestionar datasets, jobs y runs en Marquez.

Características:
- Enviar eventos OpenLineage (START, RUNNING, COMPLETE, FAIL)
- Registrar y consultar datasets
- Registrar y consultar jobs y runs
- Consultar lineage de datasets con formato texto/JSON
- Listar recursos (namespaces, jobs, datasets)
- Sin dependencias externas (solo Go stdlib)
- Binario estático compilado de ~5MB

Archivos:
- tools/marquez-cli/main.go: CLI principal con comandos
- tools/marquez-cli/openlineage.go: Cliente HTTP y estructuras OpenLineage
- tools/marquez-cli/go.mod: Módulo de Go
- tools/marquez-cli/Makefile: Build automation
- tools/marquez-cli/README.md: Documentación completa
- tools/marquez-cli/QUICKSTART.md: Guía rápida de uso

Instalación: make install en ~/.local/bin/marquez-cli

tools/marquez-cli/Makefile

@@ -0,0 +1,49 @@
+# Makefile for marquez-cli
+
+BINARY_NAME=marquez-cli
+INSTALL_PATH=$(HOME)/.local/bin
+GO=go
+GOFLAGS=-ldflags="-s -w"
+
+.PHONY: all build install clean test help
+
+all: build
+
+## build: Build the binary
+build:
+	@echo "Building $(BINARY_NAME)..."
+	@$(GO) build $(GOFLAGS) -o $(BINARY_NAME) .
+	@echo "✓ Binary built: ./$(BINARY_NAME)"
+
+## install: Build and install to ~/.local/bin
+install: build
+	@echo "Installing $(BINARY_NAME) to $(INSTALL_PATH)..."
+	@mkdir -p $(INSTALL_PATH)
+	@cp $(BINARY_NAME) $(INSTALL_PATH)/
+	@chmod +x $(INSTALL_PATH)/$(BINARY_NAME)
+	@echo "✓ Installed to $(INSTALL_PATH)/$(BINARY_NAME)"
+	@echo ""
+	@echo "Make sure $(INSTALL_PATH) is in your PATH:"
+	@echo "  export PATH=\"\$$PATH:$(INSTALL_PATH)\""
+
+## clean: Remove built binaries
+clean:
+	@echo "Cleaning..."
+	@rm -f $(BINARY_NAME)
+	@echo "✓ Cleaned"
+
+## test: Run tests
+test:
+	@echo "Running tests..."
+	@$(GO) test -v ./...
+
+## uninstall: Remove installed binary
+uninstall:
+	@echo "Uninstalling $(BINARY_NAME)..."
+	@rm -f $(INSTALL_PATH)/$(BINARY_NAME)
+	@echo "✓ Uninstalled"
+
+## help: Show this help
+help:
+	@echo "Available targets:"
+	@sed -n 's/^##//p' Makefile | column -t -s ':' | sed -e 's/^/ /'