Add Go implementation with ONNX Runtime

- Use golang:1.23-bookworm as builder
- Use debian:bookworm-slim as runtime
- Use github.com/yalue/onnxruntime_go for ONNX inference
- Use github.com/sugarme/tokenizer for tokenization
- Download ONNX Runtime v1.27.0 shared library
- Download model.onnx and model.onnx_data from onnx-community
- Support API_SECRET environment variable for authentication
- Final image size: ~266 MB

Generated by Mistral Vibe.
Co-Authored-By: Mistral Vibe <vibe@mistral.ai>

go.mod

@@ -0,0 +1,17 @@
+module vector
+
+go 1.23
+
+require (
+	github.com/sugarme/tokenizer v0.3.0
+	github.com/yalue/onnxruntime_go v1.31.0
+)
+
+require (
+	github.com/mitchellh/colorstring v0.0.0-20190213212951-d06e56a500db // indirect
+	github.com/rivo/uniseg v0.4.7 // indirect
+	github.com/schollz/progressbar/v2 v2.15.0 // indirect
+	github.com/sugarme/regexpset v0.0.0-20200920021344-4d4ec8eaf93c // indirect
+	golang.org/x/text v0.25.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+)