CLOUDP-86937: Add support to the Atlas Go Client to load sample data into a cluster

[andreaangiolillo]

Description

Please include a summary of the fix/feature/change, including any relevant motivation and context.

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]

Some minor style/grammar recommendations but thanks for adding this

[gssbzn]

LGTM thanks for all the improvements cc @themantissa

[gssbzn]

LGTM

[themantissa]

LGTM, thank you!