INTMDB-252: Added two parameters for Process args

[coderGo93]

Description

• Added two parameters defaultReadConcern and defaultWriteConcern for process args

Link to any related issue(s):

Type of change:

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

Required Checklist:

• I have signed the MongoDB CLA
• I have added tests that prove my fix is effective or that my feature works
• I have added any necessary documentation (if appropriate)
• I have run make fmt and formatted my code

Further comments

[gssbzn]

[q] have you tested with a number as string ("1")? reasons I ask is that technically this is "majority" (string) or 1...n as number, API seems to accept string but want to make sure it's handled correctly, I'll merge after confirming this

[coderGo93]

I have not tested defaultWriteConcern as number, since the docs says is a string, will test defaultWriteConcern as number to see what happens

[coderGo93]

@gssbzn , I changed to int64 and it seems you can pass as integer/number in request, but the issue is in the response, it will panic like this
json: cannot unmarshal string into Go struct field ProcessArgs.defaultWriteConcern of type int64

so in response it seems the defaultWriteConcern will always return as string

[gssbzn]

LGTM with a question, will merge after confirming

[andreaangiolillo]

LGTM