api: add semantic route support

[Xunzhuo]

What type of PR is this?

api: add semantic route support

Which issue(s) this PR fixes:

part-of: #145

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[github-actions]

👥 vLLM Semantic Team Notification

The following members have been identified for the changed files in this PR and have been automatically assigned:

📁 deploy

Owners: @rootfs, @Xunzhuo
Files changed:

• deploy/kubernetes/crds/vllm.ai_semanticroutes.yaml

📁 Root Directory

Owners: @rootfs, @Xunzhuo
Files changed:

• examples/semanticroute/README.md
• examples/semanticroute/complex-filter-chain.yaml
• examples/semanticroute/comprehensive-example.yaml
• examples/semanticroute/multiple-routes.yaml
• examples/semanticroute/simple-intent-routing.yaml
• examples/semanticroute/tool-selection-example.yaml
• examples/semanticroute/weighted-routing.yaml

📁 src

Owners: @rootfs, @Xunzhuo, @wangchen615
Files changed:

• src/semantic-router/hack/boilerplate.go.txt
• src/semantic-router/pkg/apis/vllm.ai/v1alpha1/doc.go
• src/semantic-router/pkg/apis/vllm.ai/v1alpha1/filter_helpers.go
• src/semantic-router/pkg/apis/vllm.ai/v1alpha1/filter_types.go
• src/semantic-router/pkg/apis/vllm.ai/v1alpha1/register.go
• src/semantic-router/pkg/apis/vllm.ai/v1alpha1/types.go
• src/semantic-router/pkg/apis/vllm.ai/v1alpha1/zz_generated.deepcopy.go
• src/semantic-router/go.mod
• src/semantic-router/go.sum

📁 tools

Owners: @yuluo-yx, @rootfs, @Xunzhuo
Files changed:

• tools/make/golang.mk

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🎉 Thanks for your contributions!

This comment was automatically generated based on the OWNER files in the repository.