Feat: Add PascalCase to CaseActions

[IncognitaDev]

This PR adds a new CaseAction that transform other cases to PascalCase once its not easily to do with combinations of current cases transforms.

To test:

• clone this branch
• compile
• run
• write a text with any case
• select the text
• call the command pallete
• select Transform to PascalCase

resolve #206257

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[IncognitaDev]

@microsoft-github-policy-service agree

[IncognitaDev]

@connor4312 I think i shoudnt have to update manually, what i should do now?

[connor4312]

thanks for the PR!

[IncognitaDev]

Thanks for accept!