Android: Resolve filepath for content URI

[andtos90]

File sharing with the content URI will not use the original filename, I've just updated the stat API to return the original file path (the file pointed by the content uri).

Example:

[itinance]

Many thanks! Could you pls add some notes in the appropriate section of stat() in README? Thx!

[andtos90]

Done, it's a brief introduction but I hope that explains the correct use case

[elribonazo]

I had a problem also with paths between the original file path and the one react-native is able to load.
How i finally solved it was adding file:// to the originalFilePath, i'm not sure of your requirements but I can work with the images perfectly now

[elribonazo]

@itinance Can we please plan the merge / pull request please?

[rodalmeida]

@andtos90 have some concern about this, because getOriginalFilepath can actually return an empty string, if we call stat(filepath) with the original file path wouldn't it fail?