Timing improvements

[jsiirola]

Fixes # N/A

Summary/Motivation:

This improves two timing-related issues in Pyomo:

• the test_timing.py have been somewhat fragile. This PR disables the GC during the tests to hopefully reduce the test-to-test variability
• This does an overhaul of the polling interval used by TeeStream to poll more aggressively at the beginning of the subprocess and then slower as the process proceeds. This reduces the overhead that TeeStream adds to short-running processes. This partially addresses platform runtime differences observed in Long runtimes on Windows for code using parameter estimate IDAES/idaes-pse#293.

Changes proposed in this PR:

• Move polling to leverage a "sliding scale" for both processing output and thread cleanup
• Disable GC during pyomo.common.timing tests

Legal Acknowledgement

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1. I agree my contributions are submitted under the BSD license.
2. I represent I am authorized to make the contributions and grant the license. If my employer has rights to intellectual property that includes these contributions, I represent that I have received permission to make contributions and grant the required license on behalf of that employer.

[codecov]

Codecov Report

Merging #1939 (f06132e) into main (c17ab1c) will increase coverage by 0.00%.
The diff coverage is 94.44%.

@@           Coverage Diff           @@
##             main    #1939   +/-   ##
=======================================
  Coverage   80.12%   80.12%           
=======================================
  Files         569      569           
  Lines       71841    71852   +11     
=======================================
+ Hits        57560    57572   +12     
+ Misses      14281    14280    -1     

Impacted Files	Coverage Δ
pyomo/common/tee.py	91.63% <94.44%> (+0.80%)	⬆️

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