* move s3 api helpers into own TS file
* add demo file
* add comments
* add method to set user metadata by copying it
* set checksum metadata on uploaded binary
* move checksum to the right upload file
* call the right method
* fix require from ts
* convert size to string
* needs extension
* test binary against other projects
* set checksums as headers during first upload
* Revert "set checksums as headers during first upload"
This reverts commit 2043d9ee1f.
* set ACL to public-read when setting metadata on binary
* linting
* pass content-type
* update scripts tests
* linting
* add --platformArch parameter
