hack/deploy-scheduler-estimator.sh support deploy estimator in the specified namespace

[zhzhuang-zju]

What type of PR is this?
/kind feature

What this PR does / why we need it:
Currently, the karmada-operator does not provide the capability to install the estimator, so it is often combined with hack/deploy-scheduler-estimator.sh to deploy karmada-scheduler-estimator. However, to better align hack/deploy-scheduler-estimator.sh with the installation method of the karmada-operator, we need to:

• support deploy estimator in the specified namespace
• GRPC certificate names can be configured to meet the needs of users who want to customize their certificate names.

Additionally, split the parameter MEMBER_CLUSTER_NAME into MEMBER_CLUSTER_CONTEXT and MEMBER_CLUSTER_NAME. Sometimes these two values are different and need to be distinguished.

Which issue(s) this PR fixes:
Fixes #

Special notes for your reviewer:

• The new parameter is an optional parameter, and the default value remains unchanged
• local test

1. deploy karmada instance in test namespace
2. join member cluster member1 with cluster context member1-host
3. hack/deploy-scheduler-estimator.sh ~/.kube/karmada.config karmada-host ~/.kube/member1.config member1-host member1 test karmada-demo-cert

I0909 11:49:10.013859       1 cache.go:111] Start dialing estimator server(karmada-scheduler-estimator-member1.test.svc.cluster.local:10352) of cluster(member1).
I0909 11:49:10.044687       1 cache.go:119] Connection with estimator server(karmada-scheduler-estimator-member1.test.svc.cluster.local:10352) of cluster(member1) has been established.

Does this PR introduce a user-facing change?:

[karmada-bot]

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[zhzhuang-zju]

cc @jabellard

[codecov-commenter]

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Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 36.57%. Comparing base (6e41d9b) to head (14a8286).

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Additional details and impacted files

@@           Coverage Diff           @@
##           master    #5511   +/-   ##
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  Coverage   36.56%   36.57%           
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  Files         648      648           
  Lines       45079    45079           
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+ Hits        16485    16488    +3     
+ Misses      27351    27348    -3     
  Partials     1243     1243           

Flag	Coverage Δ
unittests	36.57% <ø> (+<0.01%)	⬆️

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[zhzhuang-zju]

cc @chaosi-zju

[zhzhuang-zju]

All the review comments have been addressed. Do you have any other comments?
cc @liangyuanpeng @chaosi-zju

[chaosi-zju]

generally ok, see what other people think