Added iBootbar agent with MIB and added set function to snmp.py

[davidvng]

Description

Added a set function to snmp.py to handle any set commands used in agent scripts.
Added new agent directory with Dockerfile, agent python script, and MIB (in sub-directory mibs).
The iBootbar agent contains 1 process and 4 tasks:

• acq (process) - gets outlet status and sends to session.data and feed
• get_names (task) - returns list of outlet names and updates them in session.data and feed
• set_outlet (task) - sets a particular outlet to on/off
• cycle_outlet (task) - cycles a particular outlet for a given amount of time
• reboot (task) - reboots the entire system

Motivation and Context

Initial iBootbar agent PR.

Closes #63.

How Has This Been Tested?

Tested with iBootbar equipment in the lab. Ran each individual task and verified the changes done on the system. Tested the main process by verifying data is seen on OCS web and Grafana.

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• Unless I am preparing a release, I have opened this PR onto the develop branch.

[BrianJKoopman]

Thanks for the PR @davidvng! It's looking good, I have some suggestions for the structure, some questions, and documentation requests inline below.

One thing we're still missing is an Agent Reference Page. That'll go in socs/docs/agents/ and should be added to the index socs/docs/index.rst under the "Agent Reference" section. You can then try building the docs locally, which I usually do to check formatting.

[BrianJKoopman]

I also just added the MIB file to our flake8 config file's ignore list, so it doesn't get auto-formatted, since it's just output from the mib converter script.

pre-commit runs flake8 and is catching a few unused imports. Please remove those as well. See output here: https://results.pre-commit.ci/run/github/186511668/1656001941.ccW0D6oWQ3uLcZUGv8WYrw (This is the "Details" on the pre-commit line under the checks at the end of this PR page.)

[BrianJKoopman]

This is looking good! I have a couple questions still, and some clarification is needed on the session.data format.

EDIT: I pushed some small changes to the docstrings and docs page, as well as adding the docs page to the index file.