Add swagger for some endpoints

[johan-bjareholt]

TODO: write proper todo list

[codecov[bot]]

Codecov Report

Merging #161 into master will decrease coverage by 4.19%. The diff coverage is 0.00%.

@@            Coverage Diff             @@
##           master     #161      +/-   ##
==========================================
- Coverage   46.88%   42.68%   -4.20%     
==========================================
  Files          51       51              
  Lines        7341     7510     +169     
  Branches     2366     2405      +39     
==========================================
- Hits         3442     3206     -236     
- Misses       2773     3267     +494     
+ Partials     1126     1037      -89     

Impacted Files	Coverage Δ
aw-client-rust/src/lib.rs	79.26% <ø> (ø)
aw-models/src/timeinterval.rs	46.59% <0.00%> (-12.74%)	:arrow_down:
aw-server/src/endpoints/bucket.rs	0.00% <0.00%> (-48.28%)	:arrow_down:
aw-server/src/endpoints/export.rs	0.00% <0.00%> (-57.90%)	:arrow_down:
aw-server/src/endpoints/import.rs	0.00% <ø> (-67.40%)	:arrow_down:
aw-server/src/endpoints/mod.rs	0.00% <0.00%> (-40.82%)	:arrow_down:
aw-server/src/endpoints/util.rs	0.00% <0.00%> (-65.72%)	:arrow_down:
aw-server/src/endpoints/cors.rs	0.00% <0.00%> (-90.91%)	:arrow_down:
aw-server/src/endpoints/query.rs	0.00% <0.00%> (-65.00%)	:arrow_down:
... and 14 more

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[johan-bjareholt]

@ErikBjare I'll assume that there's something wrong with Rust Nightly because now the same issue also happens with pear and pear_codegen instead of the previous serde and serde_derive.