support for using go plugin to register storage layer plugins

[Iceber]

What type of PR is this?

/kind feature

What this PR does / why we need it:

1. Add pkg/storage/plugins.go LoadPlugins function to load storage layer plugins
2. Modify cmd/apiserver, cmd/binding-apiserver, cmd/clustersynchro-manager, read the plugin directory from the STORAGE_PLUGINS environment variable, and call storage.LoadPlugins
3. Update the build flow to support the go plugin

Build flow with go plugin support

1. Add builder.sh script for cgo to build clusterpedia components and plugins

$ ./hack/builder.sh

Build components:
    ./hack/builder.sh <apiserver|binding-apiserver|clustersynchro-manager|controller-manager>

Build plugins:
    ./hack/builder.sh plugins <plugin_name>

ENV:
    CLUSTERPEDIA_REPO: clusterpedia repo path, required if the pwd is not in the clusterpedia repository.
            eg. CLUSTERPEDIA_REPO=/clusterpedia

    PLUGIN_REPO: plugin repo path, required if the pwd is not the plugin repository.
            eg. CLUSTERPEDIA_REPO=/plugins/sample-storage-layer

    OUTPUT_DIR: default is the root of the repository or pwd,
                the component binary will be output in $OUTPUT_DIR/bin, the plugins will be output in $OUTPUT_DIR/plugins.
            eg. OUTPUT_DIR=.

2. When building the image, to ensure that the clusterpedia component and plugin dependencies are consistent, we add a builder image that contains:

• • golang and arm64 cross-compiler package
• • clusterpedia repository code
• • builder.sh script

3. Use the builder image as the Dockerfile for the base image

ARG BUILDER_IMAGE
ARG BASE_IMAGE
FROM --platform=$BUILDPLATFORM ${BUILDER_IMAGE} as builder
WORKDIR /clusterpedia

ARG BIN_NAME
ARG TARGETARCH
RUN GOARCH=${TARGETARCH} /builder.sh ${BIN_NAME}

FROM ${BASE_IMAGE}
RUN apk add --no-cache gcompat

ARG BIN_NAME
COPY --from=builder /clusterpedia/bin/${BIN_NAME} /usr/local/bin/${BIN_NAME}

Which issue(s) this PR fixes:
Fixes #

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

NONE

[clusterpedia-bot]

Hi @Iceber,
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[Iceber]

/label do-not-merge/hold

[wuyingjun-lucky]

/assign

[wuyingjun-lucky]

LGTM