feat(storage-box): add subaccount commands

[phm07]

This PR implements the Storage Box Subaccount resource.

[codecov]

Codecov Report

❌ Patch coverage is 64.14141% with 142 lines in your changes missing coverage. Please review.
⚠️ Please upload report for BASE (storage-boxes@35ef415). Learn more about missing BASE report.

Files with missing lines	Patch %	Lines
...md/storagebox/subaccount/update_access_settings.go	65.82%	18 Missing and 9 partials ⚠️
internal/cmd/storagebox/subaccount/create.go	73.75%	14 Missing and 7 partials ⚠️
...ternal/cmd/storagebox/subaccount/reset_password.go	59.61%	14 Missing and 7 partials ⚠️
internal/cmd/storagebox/subaccount/update.go	50.00%	14 Missing and 4 partials ⚠️
internal/cmd/storagebox/subaccount/cmpl.go	5.55%	16 Missing and 1 partial ⚠️
internal/cmd/storagebox/subaccount/describe.go	71.15%	9 Missing and 6 partials ⚠️
internal/cmd/storagebox/subaccount/list.go	58.82%	12 Missing and 2 partials ⚠️
internal/cmd/storagebox/subaccount/delete.go	64.00%	6 Missing and 3 partials ⚠️

Additional details and impacted files

@@               Coverage Diff                @@
##             storage-boxes    #1160   +/-   ##
================================================
  Coverage                 ?   70.13%           
================================================
  Files                    ?      284           
  Lines                    ?    12443           
  Branches                 ?        0           
================================================
  Hits                     ?     8727           
  Misses                   ?     2903           
  Partials                 ?      813           

Flag	Coverage Δ
e2e	48.63% <28.28%> (?)
unit	64.51% <64.14%> (?)

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