fix: Autocad perf - Adds early exit to idle manager to shortcut call check

[adamhathcock]

Part of https://linear.app/speckle/issue/CNX-1324/improving-send-and-receive-perf

Since Autocad calls object changed on each receive, this shaves off 7 seconds off my test. Also fixes a namespace

Should talk about Transactions vs StartStop ones

before:

after:

[codecov]

Codecov Report

Attention: Patch coverage is 80.00000% with 2 lines in your changes missing coverage. Please review.

Project coverage is 8.66%. Comparing base (9d5faa9) to head (5858fd8).
Report is 1 commits behind head on dev.

Files with missing lines	Patch %	Lines
...3/Speckle.Connectors.DUI/Bridge/IdleCallManager.cs	66.66%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@           Coverage Diff            @@
##             dev    #609      +/-   ##
========================================
- Coverage   8.71%   8.66%   -0.05%     
========================================
  Files        227     227              
  Lines       4374    4374              
  Branches     546     547       +1     
========================================
- Hits         381     379       -2     
- Misses      3978    3979       +1     
- Partials      15      16       +1     

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[oguzhankoral]

Since this PR touches the IdleManager which would effect the all connectors that means need to be tested widely. I would rather to have this imporevements in after end of Feb release. Thats why i marked it as draft.

[linear]

CNX-1324 Improving Send and Receive perf

[oguzhankoral]

Tested and looks good