Fix urgent crashes A and E

[neslihanturan]

Description

Fixes A and E from #1545 (I hope). It saves file which is being uploaded to a temp location, and uses Uri of that file as reference during upload process, instead of using Uri that content provider supported.

Tests performed (required)

Tested on API 23, beta debug. Tested actions: share photo from another application, share multiple photos from another application and contributing via contributions list.

Not: Finally a beautiful commit history!

[codecov-io]

Codecov Report

❗ No coverage uploaded for pull request base (2.8-release@d05cf39). Click here to learn what that means.
The diff coverage is 2.99%.

@@              Coverage Diff              @@
##             2.8-release   #1749   +/-   ##
=============================================
  Coverage               ?   3.65%           
=============================================
  Files                  ?     186           
  Lines                  ?    9314           
  Branches               ?     823           
=============================================
  Hits                   ?     340           
  Misses                 ?    8951           
  Partials               ?      23

Impacted Files	Coverage Δ
.../free/nrw/commons/di/CommonsApplicationModule.java	47.61% <ø> (ø)
...ain/java/fr/free/nrw/commons/upload/FileUtils.java	3.22% <ø> (ø)
...r/free/nrw/commons/contributions/Contribution.java	0% <0%> (ø)
...java/fr/free/nrw/commons/upload/UploadService.java	0% <0%> (ø)
...w/commons/contributions/ContributionsActivity.java	0% <0%> (ø)
...fr/free/nrw/commons/nearby/NearbyListFragment.java	0% <0%> (ø)
...java/fr/free/nrw/commons/upload/ShareActivity.java	0% <0%> (ø)
...r/free/nrw/commons/utils/ExternalStorageUtils.java	0% <0%> (ø)
...rw/commons/mwapi/ApacheHttpClientMediaWikiApi.java	3.76% <0%> (ø)
.../commons/contributions/ContributionController.java	0% <0%> (ø)
... and 8 more

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[neslihanturan]

Ready to be tested @misaochan :)

[misaochan]

Just tested this. All of my tests work and the wrong image bug seems to have been fixed, great job! :) A Nearby upload failed once, but the next upload I tried via the same method succeeded, so that was probably just a fluke.