Handle all namespace cases - default, prefixed, no namespace.

[medley56]

• Avoid passing namespace dicts down through all from_xml methods in favor of predefining a custom Element class that contains the namespace
• Convert internal parameter types, parameters, and containers to set objects with read only dict accessor properties.
• Increase performance by minimizing broad XML find and findall calls.

Checklist

• Changes are fully implemented without dangling issues or TODO items
• Deprecated/superseded code is removed or marked with deprecation warning
• Current dependencies have been properly specified and old dependencies removed
• New code/functionality has accompanying tests and any old tests have been updated to match any new assumptions
• The changelog.md has been updated

[greglucas]

I don't know enough about namespaces or XML, so most of my comments are just my ignorance of it all. Feel free to dismiss or ignore. Overall, I really like that this gets rid of the ns showing up everywhere and think it will simplify things moving forward!

[codecov]

Codecov Report

Attention: Patch coverage is 93.52751% with 20 lines in your changes missing coverage. Please review.

Project coverage is 91.82%. Comparing base (5c40558) to head (ecf6f08).

Files with missing lines	Patch %	Lines
tests/unit/test_xtce/test_parameter_types.py	76.66%	7 Missing ⚠️
space_packet_parser/common.py	95.65%	2 Missing ⚠️
space_packet_parser/xtce/containers.py	89.47%	2 Missing ⚠️
space_packet_parser/xtce/definitions.py	94.87%	2 Missing ⚠️
tests/unit/test_xtce/test_calibrators.py	84.61%	2 Missing ⚠️
tests/unit/test_xtce/test_encodings.py	90.47%	2 Missing ⚠️
space_packet_parser/xtce/calibrators.py	92.30%	1 Missing ⚠️
space_packet_parser/xtce/comparisons.py	94.44%	1 Missing ⚠️
tests/unit/test_xtce/test_comparisons.py	94.73%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff            @@
##           main     #143       +/-   ##
=========================================
+ Coverage      0   91.82%   +91.82%     
=========================================
  Files         0       35       +35     
  Lines         0     2543     +2543     
=========================================
+ Hits          0     2335     +2335     
- Misses        0      208      +208     

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[greglucas]

To me, this looks super helpful and is much appreciated to remove all the required "ns" passing. Thank you for looking into this. All of my minor code-formatting comments have been addressed. I think the logic seems sound, but I don't have enough experience to fully verify that is the best approach. I think we should get this in sooner rather than later due to the amount of code it touches by just removing "ns=" in so many places. We can iterate on the little things later because it is mostly non-user facing.