Add Route Resolution Benchmarking to Unit Test

[harshanarayana]

Description

This PR adds a set of test cases that serve as the sample benchmarking mechanism for each of the sanic's individual components.

As part of this initial cut of the attempt, it leverages the pytest-benchmark plugin to test and benchmark the route resolution mechanism employed by sanic.

Sample Output

------------------------------------------------------------------------------------------------- benchmark: 2 tests -------------------------------------------------------------------------------------------------
Name (time in ns)                              Min                   Max                Mean             StdDev              Median                IQR            Outliers  OPS (Mops/s)            Rounds  Iterations
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
test_resolve_route_no_arg_string_path     151.7620 (1.0)        397.6730 (1.0)      170.8607 (1.02)     33.5440 (1.0)      157.6000 (1.00)      5.1415 (1.0)       112;193        5.8527 (0.98)       1000        1000
test_resolve_route_with_typed_args        152.1700 (1.00)     1,138.8840 (2.86)     168.0992 (1.0)      42.5012 (1.27)     156.8525 (1.0)      12.2375 (2.38)       74;130        5.9489 (1.0)        1000        1000
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

This PR replaces a different idea proposed in #1439

Note

This PR also does some cleanup for the existing test

[codecov]

Codecov Report

Merging #1499 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #1499   +/-   ##
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  Coverage   91.45%   91.45%           
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  Files          17       17           
  Lines        1731     1731           
  Branches      330      330           
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  Hits         1583     1583           
  Misses        123      123           
  Partials       25       25

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[ahopkins]

Well done!