Rename prompt

[retailcoder]

Implement a prompt based on the MessageBox component, that receives an identifier name from user input in a textbox - mock-up:

• New name is required (cannot be null, empty, or whitespace)
• New name cannot match old name
• New name defaults to old name, textbox content selected and focused
• Validation error message is clearly visible (when applicable)
• Icon (title) represents the DeclarationType of the symbol
• Confirm (OK) command/button is disabled unless the name is valid

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Maximum length - module: 31 characters. Anything else: 255 characters (TODO verify in MSVBAL).