PageCtl: Support getting blob data from PageStorage instance (release-7.5)

[JaySon-Huang]

cherry-pick of #9723

What problem does this PR solve?

Issue Number: close #9716

Problem Summary:

What is changed and how it works?

PageCtl: Support getting blob data from PageStorage instance
And output the "PageEntryV3.offset" in decimal instead of hexadecimal

>  ./dbms/src/Server/tiflash pagectl -V 3 --mode 7 --blob_id 1060 --blob_offset 30413 --blob_size 47 -P /data1/1210_down/meta
Running with mode=DISPLAY_BLOB_DATA
...
checksum: 0xE1CB85684ED5E5B6
hex:030000000500000000000000220A18080010011A08800000000003D05C2208800000000007A11510F04418F744201A

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

None

[CalvinNeo]

lgtm

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: CalvinNeo, JinheLin

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• OWNERS [CalvinNeo,JinheLin]

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-12-11 08:12:19.015379007 +0000 UTC m=+426129.104181542: ☑️ agreed by JinheLin.
• 2024-12-11 08:20:48.23349379 +0000 UTC m=+426638.322296333: ☑️ agreed by CalvinNeo.

[JaySon-Huang]

/test pull-unit-test