Add duplication capability to functions and outputs

[internalthought]

Inspired by issue #1366

[kizniche]

I see you found my clone_model function I used to duplicate dashboards/inputs. This looks great. I'll test soon to see if I notice any issues. Thanks for the PR!

[kizniche]

The build test test_add_all_function_devices_logged_in_as_admin seems to be failing.

=========================== short test summary info ============================
FAILED tests/software_tests/test_mycodo_flask/test_endpoints.py::test_add_all_function_devices_logged_in_as_admin - AssertionError: Number of Functions doesn't match: In DB 1, Should be: 0
assert 1 == 0
FAILED tests/software_tests/test_mycodo_flask/test_endpoints.py::test_add_all_function_actions_logged_in_as_admin - AssertionError: Number of Actions doesn't match: In DB 0, Should be: 1
assert 0 == 1

I'll investigate later

[internalthought]

fixed my implementation to work with the clone_model -> database interactions. also had issues installing to rpi(i had previously tested on docker only), so put in some workarounds to get it running. if its too messy, i can clean that up.

[kizniche]

What is the purpose of the additional commands in the update-permissions section of upgrade_commands.sh? Restarting all services when permissions are set seems out of place and is likely to negatively impact some users.

[internalthought]

for some reason, when running setup.sh, the web server connect test doesn't pass unless i delete the mycodoflask.sock and restart all three services. i reordered the setup.sh commands and added to the reset web server command, just to pass through install. not entirely sure why that's the case. i fixed the endpoint test to work with duplication test case, although my changes may make this test less useful. either way, the duplication function and buttons work and pytest passes!

[kizniche]

We shouldn't be changing the group of a user's /usr/local directory