Change to use the ph:// URL format, to compatible with react-native-cameraroll

[dreampiggy]

See: react-native-cameraroll/react-native-cameraroll#111

[codecov]

Codecov Report

Merging #12 into master will decrease coverage by 0.18%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master      #12      +/-   ##
==========================================
- Coverage   63.52%   63.34%   -0.19%     
==========================================
  Files           3        3              
  Lines         255      251       -4     
==========================================
- Hits          162      159       -3     
+ Misses         93       92       -1

Flag	Coverage Δ
#iOS	63.34% <100%> (-0.19%)	⬇️

Impacted Files	Coverage Δ
...hotosPlugin/Classes/NSURL+SDWebImagePhotosPlugin.m	81.25% <100%> (+0.69%)	⬆️

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