feat: support custom r/w gRPC options (backport #1017)

[zemyblue]

Description

backport #1017 to v0.47.1

Motivation and context

How has this been tested?

Screenshots (if appropriate):

Checklist:

• I followed the contributing guidelines and code of conduct.
• I have added a relevant changelog to CHANGELOG.md
• I have added tests to cover my changes.
• I have updated the documentation accordingly.
• I have updated API documentation client/docs/swagger-ui/swagger.yaml

[codecov]

Codecov Report

Merging #1019 (eaa5489) into release/v0.47.x (94b5a52) will increase coverage by 0.00%.
The diff coverage is 66.66%.

Additional details and impacted files

@@               Coverage Diff                @@
##           release/v0.47.x    #1019   +/-   ##
================================================
  Coverage            62.01%   62.01%           
================================================
  Files                  656      656           
  Lines                78918    78937   +19     
================================================
+ Hits                 48938    48950   +12     
- Misses               27293    27298    +5     
- Partials              2687     2689    +2     

Impacted Files	Coverage Δ
server/config/toml.go	20.00% <ø> (ø)
server/config/config.go	43.42% <50.00%> (+0.17%)	⬆️
server/grpc/server.go	63.04% <71.42%> (-1.48%)	⬇️
testutil/network/util.go	70.86% <100.00%> (ø)

... and 1 file with indirect coverage changes

[jaeseung-bae]

LGTM