Add missing functionality like tagging and priming

[mtfishman]

Add missing functionality like tagging and priming, focusing on functionality needed for ITensor/ITensors.jl#1611, ITensor/ITensorMPS.jl#108.

[codecov]

Codecov Report

Attention: Patch coverage is 28.40909% with 63 lines in your changes missing coverage. Please review.

Project coverage is 46.45%. Comparing base (0fd1ea2) to head (ac1dbfe).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
src/ITensorBase.jl	33.78%	49 Missing ⚠️
src/quirks.jl	0.00%	14 Missing ⚠️

❗ There is a different number of reports uploaded between BASE (0fd1ea2) and HEAD (ac1dbfe). Click for more details.

HEAD has 1 upload less than BASE

Flag	BASE (0fd1ea2)	HEAD (ac1dbfe)
docs	2	1

Additional details and impacted files

@@             Coverage Diff             @@
##             main       #4       +/-   ##
===========================================
- Coverage   87.50%   46.45%   -41.05%     
===========================================
  Files           1        2        +1     
  Lines          40      127       +87     
===========================================
+ Hits           35       59       +24     
- Misses          5       68       +63     

Flag	Coverage Δ
docs	45.23% <28.40%> (-39.77%)	⬇️

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