feat[is]: is* functions allows symbol properties

[Milly]

Implements to these functions:

• inspect
• isIntersectionOf
• isObjectOf
• isOmitOf
• isPartialOf
• isPickOf
• isReadonlyOf (Maybe not necessary)
• isRecordObjectOf
• isRecordOf
• isRequiredOf
• isStrictOf

Refs #94, #95

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 98.16%. Comparing base (e9fd92e) to head (4a5dc04).

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #97      +/-   ##
==========================================
+ Coverage   98.09%   98.16%   +0.06%     
==========================================
  Files          50       50              
  Lines         841      872      +31     
  Branches       85       89       +4     
==========================================
+ Hits          825      856      +31     
  Misses         16       16              

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[Milly]

Wait #115 to merge.