Feature request: automatically replace texas ops with unicode equivalents

[AlexDaniel]

This ticket is inspired by reddit comments.

Example: you type <=, it should automatically replaces it with ≤. Obviously, make it possible to turn that feature off, but perhaps consider having it enabled by default.

List of non-texas ops: https://docs.perl6.org/language/unicode_texas

Sister tickets:

• vim-perl6
• perl6-mode

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Leave this in. For internal use.

• [ ] Fixed in Master
• [ ] Fixed in Release
• [ ] Has Tests
• [ ] Passes Tests