Multi-upload in a single request

[koenvanderlinden]

Feature to upload all files using one multipart request.

Let me know what you think of it.

[codecov]

Codecov Report

Merging #993 into development will decrease coverage by 0.86%.
The diff coverage is 10.34%.

@@               Coverage Diff               @@
##           development     #993      +/-   ##
===============================================
- Coverage        34.72%   33.85%   -0.87%     
===============================================
  Files               10       10              
  Lines              550      570      +20     
  Branches            80       81       +1     
===============================================
+ Hits               191      193       +2     
- Misses             341      359      +18     
  Partials            18       18

Impacted Files	Coverage Δ
src/file-upload/file-uploader.class.ts	23.23% <10.34%> (-0.96%)	⬇️

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[adrianfaciu]

I just had a quick view, not much free time for me right now, but it looks good.
However most people (me included) use this library with AOT so we kind of need to make it work with that.

As a tip, you could use git rebase to squash the commits together.

Maybe @valorkin or @buchslava can provide more assistance.

[koenvanderlinden]

Thanks for having a look and some tips.
About the AOT. The original sourcecode gave me the same errors, so the changes in this Pull are not the root-cause of my build failing with AOT.
I case someone has some spare time, the --aot param can be added again to see what happens.

[ar27111994]

When will this get merged?

[eikishi01]

I was just looking for a way to upload all files individually and I got to this PR finding out that it is the default behaviour, which is what I needed, @koenvanderlinden does you PR consider allowing the use of both approaches? both use cases are valid and it should count for them.