Added RTL support for Colorize animation. Resolves #109

[awhitford]

Added textDirection parameter to ColorizeAnimatedText and ColorizeAnimatedTextKit to support RTL text.

[codecov]

Codecov Report

Merging #164 (0c68d71) into master (c3cbb6c) will decrease coverage by 0.33%.
The diff coverage is 80.00%.

@@            Coverage Diff             @@
##           master     #164      +/-   ##
==========================================
- Coverage   91.34%   91.01%   -0.34%     
==========================================
  Files           9        9              
  Lines         439      445       +6     
==========================================
+ Hits          401      405       +4     
- Misses         38       40       +2     

Impacted Files	Coverage Δ
lib/src/colorize.dart	92.68% <80.00%> (-4.46%)	⬇️

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[aagarwal1012]

lgtm