Unicode for IPA & multi-language corpora

[johnwdubois]

Is your feature request related to a problem? Linguists often need to use special characters (symbols and letters) contained in:

• International Phonetic Alphabet (IPA)
• interlinear glossed text (IGT)
• multi-language corpora For data integrity and other reasons of computational tractability, all characters (both "special" and "typical") should be supported by using Unicode in all contexts.

Describe the solution you'd like Rezonator should support characters (letters) needed for multiple languages, as well as the IPA. For a detailed discussion, see the Rezonator wiki on:

• Unicode.

Additional context Related to #125 .

[johnwdubois]

Reopened as a resource for localization and UI/UX.