Add ability to check openapi responses.

This can be used to ensure all API endpoints support common responses.
Path to responses.yaml needs to be provied via config `pyramid_openapi3_responses_config`

.isort.cfg

@@ -3,3 +3,10 @@ force_single_line=true
 atomic=true
 force_alphabetical_sort=true
 not_skip=__init__.py
+# https://black.readthedocs.io/en/stable/the_black_code_style.html?highlight=isort#how-black-wraps-lines
+# Search for : A compatible `.isort.cfg`
+multi_line_output=3
+include_trailing_comma=True
+force_grid_wrap=0
+use_parentheses=True
+line_length=88

Pipfile

@@ -5,6 +5,7 @@ name = "pypi"
 
 [packages]
 pyramid-openapi3 = {editable = true,path = "."}
+structlog = "*"
 
 [dev-packages]
 black = "==19.3b0"