update scripts/doc for mtls=true, refactorying script structure

[Jooho]

Description

This PR fixes the following issues:

• Knative support mTLS:true so doc/script need to be updated #94
• Make RHODS/ODH deployment optional in KServe installation #93
• SMMR update is not needed anymore #90
• Installation script need to be update when ODH 1.10 is out #87
• [Story] Dependent installation kserve#106

How Has This Been Tested?

script check

odh installation

git clone --branch 20231011_doc_update git@github.com:Jooho/caikit-tgis-serving.git
cd caikit-tgis-serving/demo/kserve
export TARGET_OPERATOR=odh 
export CHECK_UWM=false

./scripts/install/kserve-install.sh
./scripts/test/deploy-model.sh
./scripts/test/grpc-call.sh

# Verify this use mtls: true
oc get smcp -o yaml minimal -n istio-system|grep mtls
...
        mtls: true
...

./scripts/uninstall/kserve-uninstall.sh
./scripts/uninstall/dependencies-uninstall.sh

rhods installation

export TARGET_OPERATOR=rhods
export CHECK_UWM=false

./scripts/install/kserve-install.sh
./scripts/test/deploy-model.sh
./scripts/test/grpc-call.sh

# Verify this use mtls: true
oc get smcp -o yaml minimal -n istio-system|grep mtls
...
        mtls: true
...

./scripts/uninstall/kserve-uninstall.sh
./scripts/uninstall/dependencies-uninstall.sh

New variable DEPLOY_ODH_OPERATOR

export TARGET_OPERATOR=odh 
export CHECK_UWM=false

DEPLOY_ODH_OPERATOR=false ./scripts/install/kserve-install.sh

# Check this msg
[INFO] Deploy odh operator

DEPLOY_ODH_OPERATOR set false. Skip deploy odh/rhods operator  <== 
[INFO] Create DataScienceCluster

Error from server (NotFound): datascienceclusters.datasciencecluster.opendatahub.io "default" not found
...

Doc check
Follow this doc to install kserve
https://github.com/Jooho/caikit-tgis-serving/blob/20231011_doc_update/demo/kserve/install-manual.md

Merge criteria:

• The commits are squashed in a cohesive manner and have meaningful messages.
• Testing instructions have been added in the PR body (for PRs involving changes that are not immediately obvious).
• The developer has manually tested the changes and verified that the changes work

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: Jooho, spolti

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