Replace single questions dropdown by plugin

Description

When viewed in dropdown layout of both Single and Single grid question. There are 3 problems in this case:
• Some characters on keyboard decode/encode problem. Such as: Ampersand ( & ), single quotation  ( ' ), double quotation marks ( " ), is more than ( > ), is less than ( < ).
• Same problem with characters not on keyboard. For example: ÷, ×, ±, ≠, ≡, ≤, ≥, …, ‘, °C and maybe more than that.
• Problem with display HTML format in dropdown list when using it to design UI.

Expectation

These decode/encode problems will be fix and display normally like other question type and layout.

Example

before replace