update graphql service

[cfaur09]

Proposed Changes

• Implement more graphql services:
• tokensAccount
• delegationAccount

How to test

• run command: npm run test:graph and all test should be passed

[codecov-commenter]

Codecov Report

Base: 28.20% // Head: 67.15% // Increases project coverage by +38.94% :tada:

Coverage data is based on head (1cf900b) compared to base (c1bde3b). Patch coverage: 92.77% of modified lines in pull request are covered.

Additional details and impacted files

@@               Coverage Diff                @@
##           development     #866       +/-   ##
================================================
+ Coverage        28.20%   67.15%   +38.94%     
================================================
  Files                7      499      +492     
  Lines              234    12890    +12656     
  Branches             8     1302     +1294     
================================================
+ Hits                66     8656     +8590     
- Misses             160     3090     +2930     
- Partials             8     1144     +1136     

Flag	Coverage Δ
integrationtests	67.15% <92.77%> (?)
unittests	28.20% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
src/common/api-config/api.config.service.ts	62.72% <ø> (ø)
.../common/persistence/entities/connection.options.ts	25.00% <ø> (ø)
src/common/persistence/persistence.module.ts	80.00% <0.00%> (ø)
src/common/plugins/plugin.service.ts	100.00% <ø> (ø)
...ties/account.detailed/account.detailed.resolver.ts	80.00% <77.77%> (ø)
...ndpoints/accounts/entities/account.esdt.history.ts	100.00% <100.00%> (ø)
src/endpoints/accounts/entities/account.history.ts	100.00% <100.00%> (ø)
src/endpoints/accounts/entities/account.key.ts	100.00% <100.00%> (ø)
...c/endpoints/accounts/entities/deployed.contract.ts	100.00% <100.00%> (ø)
...ation.legacy/entities/account.delegation.legacy.ts	100.00% <100.00%> (ø)
... and 509 more

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