Add tidb_opt_prefer_range_scan to 4.0

[xuyifangreeneyes]

What problem does this PR solve?

Problem Summary:
Turning on tidb_opt_prefer_range_scan can prevent from choosing full table scan when range index scan exists, which is a way to avoid terrible plan. We can backport it to 4.0.

What is changed and how it works?

The pr cherry picks #18996, #20672, #27123

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
• No code

Side effects

• Performance regression: Consumes more CPU
• Performance regression: Consumes more Memory
• Breaking backward compatibility

Documentation

• Affects user behaviors
• Contains syntax changes
• Contains variable changes
• Contains experimental features
• Changes MySQL compatibility

Release note

Add tidb_opt_prefer_range_scan

[ti-chi-bot]

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[ti-chi-bot]

@xuyifangreeneyes: This cherry pick PR is for a release branch and has not yet been approved by release team.
Adding the do-not-merge/cherry-pick-not-approved label.

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[sre-bot]

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[xuyifangreeneyes]

/cc @winoros

[wuhuizuo]

/run-check-dev-2