feat(graphql-api): ability to extend connection information

[pradel]

The goal of this pr is to provide a way for the user to extends the info object that will be passed down to the server functions from the GraphQL context.
I will create another pr adding this for REST too.

[codecov]

Codecov Report

Merging #988 into master will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master     #988   +/-   ##
=======================================
  Coverage   95.19%   95.20%           
=======================================
  Files          80       80           
  Lines        1791     1792    +1     
  Branches      387      387           
=======================================
+ Hits         1705     1706    +1     
  Misses         84       84           
  Partials        2        2           

Impacted Files	Coverage Δ
...rc/modules/accounts-password/resolvers/mutation.ts	100.00% <100.00%> (ø)
packages/graphql-api/src/modules/accounts/index.ts	76.00% <100.00%> (ø)
...hql-api/src/modules/accounts/resolvers/mutation.ts	93.33% <100.00%> (ø)
packages/graphql-api/src/utils/context-builder.ts	94.73% <100.00%> (+0.29%)	⬆️

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