Added support for TextInputLayout hint

[goblinr]

Added support for TextInputLayout hint.
@hamidness Please look.

[codecov-io]

Codecov Report

Merging #14 into master will increase coverage by 0.29%.
The diff coverage is 81.25%.

@@            Coverage Diff             @@
##           master      #14      +/-   ##
==========================================
+ Coverage   73.14%   73.44%   +0.29%     
==========================================
  Files          16       17       +1     
  Lines         417      433      +16     
  Branches       56       59       +3     
==========================================
+ Hits          305      318      +13     
  Misses         66       66              
- Partials       46       49       +3

Impacted Files	Coverage Δ
...tring/src/main/java/com/ice/restring/Restring.java	55.17% <100%> (+1.6%)	⬆️
...a/com/ice/restring/TextInputLayoutTransformer.java	80% <80%> (ø)

---

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 3b7c5a7...4b318d3. Read the comment docs.