Monkeypatches

[gabrielg5]

This PR added a couple function modifications for specific uses cases or issues. Mainly 2.

monkeypatch_ssl_create_default_context

Discussed in #1988
This function patches the create_default_context function from ssl allowing connection to an insecurely configured server

context.minimum_version = ssl.TLSVersion.MINIMUM_SUPPORTED
context.set_ciphers("ALL:@SECLEVEL=0")
context.verify_mode = ssl.CERT_NONE

monkeypatch_readline_backend

Discussed in #1907
This function patches readline adding a missing attribute that makes it fail in specific scenarios

readline.backend = "readline"

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At the same time, addcomputer example has been modified to leverage utils.init_ldap_session