Add the type check when inserting geography value

[jievince]

What type of PR is this?

• bug
• feature
• enhancement

What problem(s) does this PR solve?

Issue(s) number:

Fix #5459

Description:

When inserting, the geography value is converted to a WKB string format. However, it is not possible to differentiate whether a string being inserted into a property of geography type is in fact a WKB string or just an ordinary string.

So I add an argument isWKB to distinguish it:

WriteResult RowWriterV2::write(ssize_t index, folly::StringPiece v, bool isWKB)

How do you solve it?

Special notes for your reviewer, ex. impact of this fix, design document, etc:

Checklist:

Tests:

• Unit test(positive and negative cases)
• Function test
• Performance test
• N/A

Affects:

• Documentation affected (Please add the label if documentation needs to be modified.)
• Incompatibility (If it breaks the compatibility, please describe it and add the label.）
• If it's needed to cherry-pick (If cherry-pick to some branches is required, please label the destination version(s).)
• Performance impacted: Consumes more CPU/Memory

Release notes:

Please confirm whether to be reflected in release notes and how to describe:

ex. Fixed the bug .....

[Shylock-Hg]

I think you could add a new structure like struct WKB {folly::StringPiece}.

[jievince]

I want to reuse the code of write(ssize_t index, folly::StringPiece v)