Updating docs and formatting files

[adrianfaciu]

• merged some old commits and updated docs with some info about those
• formatted some of the source code files

[codecov]

Codecov Report

Merging #903 into development will decrease coverage by 0.25%.
The diff coverage is 51.89%.

@@               Coverage Diff               @@
##           development     #903      +/-   ##
===============================================
- Coverage        34.98%   34.72%   -0.26%     
===============================================
  Files               10       10              
  Lines              546      550       +4     
  Branches            78       80       +2     
===============================================
  Hits               191      191              
- Misses             337      341       +4     
  Partials            18       18

Impacted Files	Coverage Δ
src/file-upload/file-upload.module.ts	100% <ø> (ø)	⬆️
src/file-upload/file-select.directive.ts	77.27% <0%> (ø)	⬆️
src/file-upload/file-item.class.ts	21.42% <50%> (ø)	⬆️
src/file-upload/file-uploader.class.ts	24.18% <51.4%> (-0.36%)	⬇️
src/file-upload/file-type.class.ts	23.07% <63.63%> (ø)	⬆️
src/file-upload/file-like-object.class.ts	22.22% <66.66%> (ø)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update bcf40f4...e1e36bb. Read the comment docs.