Feature: Introduce extra tableam hook routinue for catalog to replace direct heap function calls

[foreyes]

Change logs

CloudBerry does not assume that the catalog use heap. Our approch uses tableam interfaces instead of heap function calls.

These heap functions currently widely used within the catalog include: heap_getnext, simple_heap_insert, simple_heap_delete, simple_heap_update, frozen_heap_insert, and heap_inplace_update.

In order to replace these functions, we introduce necessary new simple tableam interfaces: scan_getnext, tuple_insert_direct, tuple_insert_frozen, tuple_update_direct, tuple_inplace_update.

All access methods that can used for catalog must implement these new interfaces.

Why are the changes needed?

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Does this PR introduce any user-facing change?

If yes, please clarify the previous behavior and the change this PR proposes.

How was this patch tested?

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[CLAassistant]

All committers have signed the CLA.

[yjhjstz]

this change will affect other extension like: https://github.com/erthalion/timescaledb/blob/77d1267eb1ae01bb503c38b5f2ab8b21601e04a8/src/copy.c#L727

[tuhaihe]

@foreyes Hi, plz use rebase instead of merge for your commits to catch up with the main branch IIRC. Also plz clean up your commit history. /cc @my-ship-it

[foreyes]

Please take a look again. Thx a lot! @yjhjstz @my-ship-it

[foreyes]

I have changed commit author email from hashdata email into github email (in order to meet CLA requirement), so the branch is overwritten.

[my-ship-it]

After discussion with @foreyes, let's close the PR.