Support AUTH_TYPE_CERT_PEM and AUTH_TYPE_NONE

[pem70]

What It Does
Supports for AUTH_TYPE_CERT_PEM and AUTH_TYPE_NONE in session addressed in [#291] and [#296]

How to Test

Review Checklist
I certify that I have:

• tested my changes
• added/updated automated tests
• updated the changelog
• followed the contribution guidelines

Additional Comments

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 89.90%. Comparing base (af53e8f) to head (8fdf3b3).
Report is 156 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #305      +/-   ##
==========================================
+ Coverage   89.82%   89.90%   +0.07%     
==========================================
  Files          53       53              
  Lines        2694     2713      +19     
==========================================
+ Hits         2420     2439      +19     
  Misses        274      274              

Flag	Coverage Δ
unittests	89.90% <100.00%> (+0.07%)	⬆️

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[zFernand0]

TL;DR: Changes LGTM! 😋

---

After testing the AUTH_TYPE_NONE, I'm wondering if we should update the sample SDK. I was able to use some of that code to test this functionality and it works! 🥳

from zowe.core_for_zowe_sdk.sdk_api import SdkApi

sample = SdkApi({"host": "jsonplaceholder.typicode.com"}, "/")
custom_args = sample._create_custom_request_arguments()
custom_args["json"] = {"title": "foo", "body": "bar", "userId": 10}
custom_args["url"] = f"{sample._request_endpoint}/posts"
response_json = sample.request_handler.perform_request("POST", custom_args, expected_code=[201])
print(response_json)

---

Tested with a local instance of the APIML (using this instructions) and...

I can't seems to be able to use certificates as a valid authentication mechanism.
😢

While trying to resolve this, I found a few other places where we may need to make changes in order to pass certs properly to the requests.Session() object.
And keep in mind that we would also want to make sure not to validate certs if rejectUnauthorized is False. 😋

---

Here are some pointers that may help in resolving the certificate support issue:

• The sdk_api needs to handle the authType cert-pem (same as with the other auth types)
• The format of how certs should be passed is kind of specific (tuple instead of multiple params)
  • See requests#sessions.py#request() for more details
    • :param cert: (optional) if String, path to ssl client cert file (.pem).
If Tuple, ('cert', 'key') pair.

[zFernand0]

Left a small comment, but otherwise, the functionality LGTM! 😋

[zFernand0]

LGTM! 😋