feat: Add decoder and balances for Blur protocol

[moxw]

Handling of Blur staking contracts and associated decoding logic.

sqldiff rotkehlchen/data/develop.db rotkehlchen/data/global.db

INSERT INTO contract_abi(id,value,name) VALUES(90,'[{"inputs":[{"internalType":"address","name":"user","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"}]','BLUR_STAKING');
INSERT INTO contract_data(rowid,address,chain_id,abi,deployed_block) VALUES(168,'0xeC2432a227440139DDF1044c3feA7Ae03203933E',1,90,18601207);

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 53.53%. Comparing base (f30ee51) to head (e30ece6).
Report is 2 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff              @@
##           develop    #7886       +/-   ##
============================================
- Coverage    80.74%   53.53%   -27.22%     
============================================
  Files         1197     1651      +454     
  Lines       108493   166546    +58053     
  Branches     12990    13466      +476     
============================================
+ Hits         87608    89158     +1550     
- Misses       18616    75119    +56503     
  Partials      2269     2269               

Flag	Coverage Δ
frontend_integration	58.79% <ø> (-0.96%)	⬇️
frontend_unit	38.92% <ø> (-40.62%)	⬇️

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[codecov-commenter]

Codecov Report

Attention: Patch coverage is 82.30088% with 20 lines in your changes are missing coverage. Please review.

Project coverage is 49.84%. Comparing base (f30ee51) to head (e30ece6).
Report is 4 commits behind head on develop.

Files	Patch %	Lines
rotkehlchen/chain/ethereum/modules/blur/decoder.py	81.03%	5 Missing and 6 partials ⚠️
...otkehlchen/chain/ethereum/modules/blur/balances.py	79.06%	7 Missing and 2 partials ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##           develop    #7886       +/-   ##
============================================
- Coverage    80.74%   49.84%   -30.91%     
============================================
  Files         1197     1654      +457     
  Lines       108493   166742    +58249     
  Branches     12990    13501      +511     
============================================
- Hits         87608    83118     -4490     
- Misses       18616    81434    +62818     
+ Partials      2269     2190       -79     

Flag	Coverage Δ
backend	69.45% <82.30%> (-11.52%)	⬇️
frontend_integration	59.93% <ø> (+0.18%)	⬆️
frontend_unit	38.92% <ø> (-40.62%)	⬇️

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[LefterisJP]

LGTM

[rotkibot]

rotki/test-caching/tree/decode-blur-staking was successfully merged