feat(api): add gRPC implementation for certain interfaces

[lxcmyf]

What does this PR do?
add gRPC implementation for certain interfaces, close #5379

Why are these changes required?

This PR has been tested by:

• Unit Tests
• Manual Testing

Follow up

Extra details

[halibobo1205]

@lxcmyf LGTM, please add test to fix CI.

[codecov-commenter]

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Codecov Report

❌ Patch coverage is 77.19298% with 13 lines in your changes missing coverage. Please review.
✅ Project coverage is 61.31%. Comparing base (f9c42d6) to head (cc5488b).
⚠️ Report is 534 commits behind head on develop.

Files with missing lines	Patch %	Lines
...ain/java/org/tron/core/services/RpcApiService.java	66.66%	10 Missing ⚠️
.../core/services/http/GetBandwidthPricesServlet.java	50.00%	0 Missing and 1 partial ⚠️
...ron/core/services/http/GetEnergyPricesServlet.java	50.00%	0 Missing and 1 partial ⚠️
...on/core/services/http/GetMemoFeePricesServlet.java	50.00%	0 Missing and 1 partial ⚠️
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Additional details and impacted files

@@              Coverage Diff              @@
##             develop    #5412      +/-   ##
=============================================
+ Coverage      61.23%   61.31%   +0.07%     
- Complexity      9323     9330       +7     
=============================================
  Files            842      842              
  Lines          50147    50210      +63     
  Branches        5580     5580              
=============================================
+ Hits           30710    30784      +74     
+ Misses         17029    17021       -8     
+ Partials        2408     2405       -3     

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