feat: refactors, cache attributes, use helper methods

[TimothyMakkison]

• Replace BodylessMethods HashSet<HttpMethod> with IsBodyless function.
• Prevent headerCollection from allocating a new dictionary if the value isn't a dictionary.
  • This shouldn't be possible, I'm not sure if this should be an error.
• Use a default static QueryAttribute if queryAttribute is null.
• Use a default static Uri in UriBuilder.
• Cache QueryUriFormatAttribute in RestMethodInfo instead of every http request.
• Use a switch expression for collectionFormat.

Sorry about the hundreds of prs, I did a code review a while back and am slowly getting through my list of suggestions. I don't want to create one giant hard to follow pr.

Overall saved 250 bytes.

Original

Method	Mean	Error	StdDev	Median	Gen0	Gen1	Allocated
ConstantRouteAsync	9.987 us	0.5054 us	1.4003 us	9.826 us	0.7477	-	6.95 KB
DynamicRouteAsync	7.167 us	0.5555 us	1.5394 us	7.341 us	0.7858	0.0076	7.27 KB
ComplexDynamicRouteAsync	7.171 us	0.1430 us	0.2578 us	7.069 us	0.8545	-	7.9 KB
ObjectRequestAsync	9.756 us	0.7046 us	1.9757 us	8.828 us	0.9460	-	8.76 KB
ComplexRequestAsync	22.211 us	0.7385 us	2.0339 us	21.411 us	1.5869	-	14.8 KB

Changes

Method	Mean	Error	StdDev	Median	Gen0	Gen1	Allocated
ConstantRouteAsync	9.188 us	0.9562 us	2.7436 us	8.393 us	0.7324	0.0076	6.73 KB
DynamicRouteAsync	4.738 us	0.0983 us	0.2692 us	4.662 us	0.7629	-	7.06 KB
ComplexDynamicRouteAsync	6.993 us	0.1396 us	0.3750 us	6.872 us	0.8316	-	7.69 KB
ObjectRequestAsync	7.909 us	0.1558 us	0.2964 us	7.782 us	0.9155	-	8.5 KB
ComplexRequestAsync	23.940 us	1.0756 us	2.9985 us	23.497 us	1.5564	-	14.57 KB

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 84.62%. Comparing base (6ebeda5) to head (4717574).
Report is 48 commits behind head on main.

❗ Current head 4717574 differs from pull request most recent head 1c8bee8

Please upload reports for the commit 1c8bee8 to get more accurate results.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1739      +/-   ##
==========================================
- Coverage   87.73%   84.62%   -3.11%     
==========================================
  Files          33       36       +3     
  Lines        2348     2511     +163     
  Branches      294      328      +34     
==========================================
+ Hits         2060     2125      +65     
- Misses        208      304      +96     
- Partials       80       82       +2     

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[ChrisPulman]

@TimothyMakkison This has a merge conflict, could you solve please, thank you

[TimothyMakkison]

Mb, thought I'd solved them. Give me 5 mins

[github-actions]

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