Set Collate in types.FieldType

[milkice233]

What problem does this PR solve? #1309

What is changed and how it works?

When there is TableOptionCollate present in Options, the StrValue will be added to Collate in types.FieldType

Check List

Tests

• Unit test
• Integration test

Code changes

None

Side effects

• Little performance regression since a loop is required

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