CB-10706: (windows) fix ENCODING_ERR for applicationDirectory

[Reon90]

Platforms affected

windows

What does this PR do?

add support to reading files from application directory

What testing has been done on this change?

without testing

Checklist

• [+] ICLA has been signed and submitted to secretary@apache.org.
• [+] Reported an issue in the JIRA database
• [+] Commit message follows the format: "CB-3232: (android) Fix bug with resolving file paths", where CB-xxxx is the JIRA ID & "android" is the platform affected.
• [+] Added automated test coverage as appropriate for this change.

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Builder Name	Console Output	Test Report	Device Logs
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Windows 10 Store	Link	Link	Link
Windows 8.1 Phone	Link	Link	Link
iOS	Link	Link	Link
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[ajberry]

I have used this and confirms it fixes the issues with my windows application.