support unicode string display

[leslie-wang]

Signed-off-by: Leslie Qi Wang [email protected]

• [Y] I've read Contribution guide
• [T] I've tested everything that doesn't relate to tcell.Screen API

Close https://github.com/viktomas/godu/issues/76

[codecov-io]

Codecov Report

Merging #77 into master will decrease coverage by 0.78%. The diff coverage is 75%.

@@            Coverage Diff             @@
##           master      #77      +/-   ##
==========================================
- Coverage     100%   99.21%   -0.79%     
==========================================
  Files           7        7              
  Lines         248      255       +7     
==========================================
+ Hits          248      253       +5     
- Misses          0        1       +1     
- Partials        0        1       +1

Impacted Files	Coverage Δ
interactive/reporter.go	96.87% <75%> (-3.13%)	:arrow_down:

---

Continue to review full report at Codecov.

Legend - Click here to learn more Δ = absolute <relative> (impact), ø = not affected, ? = missing data Powered by Codecov. Last update af23dd1...5e545a7. Read the comment docs.

[viktomas]

@leslie-wang thanks for another contribution! It's great to see the handling of edge case like this. Please make sure you add tests for all code that you add.

Could you please check whether it would be possible to use the native range loop or the native utf8 library to avoid adding unnecessary dependencies?