"dsconf instance backend delete" is missing the non-interactive --do-it option

[minfrin]

Issue Description
The "dsconf instance backend delete" includes the interactive behaviour "Type 'Yes I am sure' to continue", but lacks the --do-it option used elsewhere in 389ds to allow non-interactive use.

Package Version and Platform:

• Platform: RHEL9
• Package and version: 389-ds-base-2.0.14-1.el9.x86_64
• Browser: none

Steps to Reproduce
Steps to reproduce the behavior:

1. Run "dsconf "ldapi://%2frun%2fslapd-${instance}.socket" backend delete "${bename}""
2. See prompt "Type 'Yes I am sure' to continue:"

Expected results
The addition of --do-it causes success.

[mreynolds389]

In main branch it works without any confirmation:

$ sudo dsconf slapd-localhost backend create --be-name markRoot --suffix o=mark --create-suffix
The database was sucessfully created

$ sudo dsconf slapd-localhost backend delete o=mark
The database, and any sub-suffixes, were sucessfully deleted

The 2.0 branch should behave the same way - I need to confirm that though...

On a side note I noticed we have a typo with "sucessfully" in the result messages:

lib389/cli_conf/backend.py: log.info("The database was sucessfully created")
lib389/cli_conf/backend.py: log.info("The database, and any sub-suffixes, were sucessfully deleted")