Introduce the 'full' feature

[paolobarbolini]

Part of the reason why rusty-s3 was created is to have a faster to compile alternative to other s3 clients. Unfortunately adding more actions also meant having to add more dependencies.

This adds the enabled by default full feature, which can in the future be split into smaller features without making breaking changes, which makes it possible to disable the more complicated methods and only have to compile the simpler ones. This in turn reduces the number of dependencies

[codecov]

Codecov Report

Merging #39 (d29bde7) into main (cec8e04) will increase coverage by 0.35%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main      #39      +/-   ##
==========================================
+ Coverage   91.77%   92.12%   +0.35%     
==========================================
  Files          26       26              
  Lines        1288     1371      +83     
==========================================
+ Hits         1182     1263      +81     
- Misses        106      108       +2     

Impacted Files	Coverage Δ
src/actions/mod.rs	100.00% <ø> (ø)
src/credentials/mod.rs	97.72% <ø> (ø)
src/bucket.rs	95.65% <100.00%> (+0.49%)	⬆️
src/signing/mod.rs	96.90% <0.00%> (+1.03%)	⬆️

---

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 cec8e04...d29bde7. Read the comment docs.