feat($addCanvas): start of ability to accept `<canvas>` in addFiles method

- Deprecated addBlobs.
- Removed addBlobs from documentation.
- Redirected unit tests that called addBlobs to use addFiles instead
- addFiles now handles the work of addBlobs and, of course, addFiles
- re-organized addFiles
TODO: accept `<canvas>`

#1198
Merge branch 'develop' into feature/addCanvas

Conflicts:
	README.md
	client/js/uploader.basic.api.js
	client/js/version.js
chore(merge): sync with develop branch
#1198
feat(addCanvas): allow addFiles to accept canvas

TODO:
- canvas to addFiles unit tests
- manual canvas uploading tests

#1198
docs(addCanvas): add line break to addFiles doc
[skip ci]
#1198
docs(addCanvas): typo
[skip ci]
#1198
test(addCanvas): unit tests for canvas to addFiles
closes #1198
test(addCanvas): fix lint error
closes #1198
chore(build): inc build num
[skip ci]
#1198