Support for managing permissions and shares

[mesozoic]

This is the last checkbox in the "Modify collaborations/sharing" section of the roadmap in #249. It supports the following operations:

• Update collaborator base permission
• Update interface collaborator
• Update workspace collaborator
• Delete base collaborator
• Delete interface collaborator
• Delete workspace collaborator
• Add base collaborator
• Add interface collaborator
• Add workspace collaborator
• Delete base invite
• Delete interface invite
• Delete workspace invite
• Delete share
• Manage share
• Update workspace restrictions

See changes to enterprise.rst for examples of how the API works.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (a21e218) 99.63% compared to head (63fcd48) 99.65%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #337      +/-   ##
==========================================
+ Coverage   99.63%   99.65%   +0.02%     
==========================================
  Files          25       25              
  Lines        1894     2025     +131     
==========================================
+ Hits         1887     2018     +131     
  Misses          7        7              

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